【Wordpress5.8 Gutenberg エラー不具合】「このブロックでエラーが発生したため、プレビューできません」

Gutebergでこんなエラーが起きたらSnowMonkeyプラグインをいったんOFFしてみよう
Gutebergでこんなエラーが起きたらSnowMonkeyプラグインをいったんOFFしてみよう

「このブロックでエラーが発生したため、プレビューできません」
このエラーが当方の環境で起きたので、プラグインのON/OFFで解消しないか調べてみると、
「SnowMonkeyプラグイン」をオフすると解消する模様。

このエラーが起きている時のchromeのコンソールに出力されたエラーは以下のようなもの。
react-dom.min.js?が原因?

react-dom.min.js?ver=16.13.1:125 TypeError: Object(...) is not a function
at edit (editor.js?ver=1622014023:1)
at we (react-dom.min.js?ver=16.13.1:84)
at zj (react-dom.min.js?ver=16.13.1:226)
at Th (react-dom.min.js?ver=16.13.1:152)
at tj (react-dom.min.js?ver=16.13.1:152)
at Te (react-dom.min.js?ver=16.13.1:146)
at react-dom.min.js?ver=16.13.1:61
at unstable_runWithPriority (react.min.js?ver=16.13.1:25)
at Da (react-dom.min.js?ver=16.13.1:60)
at Pg (react-dom.min.js?ver=16.13.1:61)
Me @ react-dom.min.js?ver=16.13.1:125
Jh.f.componentDidCatch.c.callback @ react-dom.min.js?ver=16.13.1:139
Wg @ react-dom.min.js?ver=16.13.1:67
oj @ react-dom.min.js?ver=16.13.1:127
Aj @ react-dom.min.js?ver=16.13.1:160
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
ab @ react-dom.min.js?ver=16.13.1:154
Te @ react-dom.min.js?ver=16.13.1:146
(anonymous) @ react-dom.min.js?ver=16.13.1:61
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
Pg @ react-dom.min.js?ver=16.13.1:61
ha @ react-dom.min.js?ver=16.13.1:60
Ja @ react-dom.min.js?ver=16.13.1:224
ch @ react-dom.min.js?ver=16.13.1:93
e @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
t @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
b @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ redux-routine.min.js?ver=7f20dbcdb5d5645c977063e356eb95cf:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12
l @ rich-text.min.js?ver=a4eb1e306ca234461cdecbca651dd8d9:2
react-dom.min.js?ver=16.13.1:125 TypeError: Object(...) is not a function
at edit (editor.js?ver=1622014023:1)
at we (react-dom.min.js?ver=16.13.1:84)
at zj (react-dom.min.js?ver=16.13.1:226)
at Th (react-dom.min.js?ver=16.13.1:152)
at tj (react-dom.min.js?ver=16.13.1:152)
at Te (react-dom.min.js?ver=16.13.1:146)
at react-dom.min.js?ver=16.13.1:61
at unstable_runWithPriority (react.min.js?ver=16.13.1:25)
at Da (react-dom.min.js?ver=16.13.1:60)
at Pg (react-dom.min.js?ver=16.13.1:61)
Me @ react-dom.min.js?ver=16.13.1:125
Jh.f.componentDidCatch.c.callback @ react-dom.min.js?ver=16.13.1:139
Wg @ react-dom.min.js?ver=16.13.1:67
oj @ react-dom.min.js?ver=16.13.1:127
Aj @ react-dom.min.js?ver=16.13.1:160
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
ab @ react-dom.min.js?ver=16.13.1:154
Te @ react-dom.min.js?ver=16.13.1:146
(anonymous) @ react-dom.min.js?ver=16.13.1:61
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
Pg @ react-dom.min.js?ver=16.13.1:61
ha @ react-dom.min.js?ver=16.13.1:60
Ja @ react-dom.min.js?ver=16.13.1:224
ch @ react-dom.min.js?ver=16.13.1:93
e @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
t @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
b @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ redux-routine.min.js?ver=7f20dbcdb5d5645c977063e356eb95cf:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12
l @ rich-text.min.js?ver=a4eb1e306ca234461cdecbca651dd8d9:2
react-dom.min.js?ver=16.13.1:125 TypeError: Object(...) is not a function
at edit (editor.js?ver=1622014023:1)
at we (react-dom.min.js?ver=16.13.1:84)
at zj (react-dom.min.js?ver=16.13.1:226)
at Th (react-dom.min.js?ver=16.13.1:152)
at tj (react-dom.min.js?ver=16.13.1:152)
at Te (react-dom.min.js?ver=16.13.1:146)
at react-dom.min.js?ver=16.13.1:61
at unstable_runWithPriority (react.min.js?ver=16.13.1:25)
at Da (react-dom.min.js?ver=16.13.1:60)
at Pg (react-dom.min.js?ver=16.13.1:61)
Me @ react-dom.min.js?ver=16.13.1:125
Jh.f.componentDidCatch.c.callback @ react-dom.min.js?ver=16.13.1:139
Wg @ react-dom.min.js?ver=16.13.1:67
oj @ react-dom.min.js?ver=16.13.1:127
Aj @ react-dom.min.js?ver=16.13.1:160
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
ab @ react-dom.min.js?ver=16.13.1:154
Te @ react-dom.min.js?ver=16.13.1:146
(anonymous) @ react-dom.min.js?ver=16.13.1:61
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
Pg @ react-dom.min.js?ver=16.13.1:61
ha @ react-dom.min.js?ver=16.13.1:60
Ja @ react-dom.min.js?ver=16.13.1:224
ch @ react-dom.min.js?ver=16.13.1:93
e @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
t @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
b @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ redux-routine.min.js?ver=7f20dbcdb5d5645c977063e356eb95cf:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12
l @ rich-text.min.js?ver=a4eb1e306ca234461cdecbca651dd8d9:2
react-dom.min.js?ver=16.13.1:125 TypeError: Object(...) is not a function
at edit (editor.js?ver=1622014023:1)
at we (react-dom.min.js?ver=16.13.1:84)
at zj (react-dom.min.js?ver=16.13.1:226)
at Th (react-dom.min.js?ver=16.13.1:152)
at tj (react-dom.min.js?ver=16.13.1:152)
at Te (react-dom.min.js?ver=16.13.1:146)
at react-dom.min.js?ver=16.13.1:61
at unstable_runWithPriority (react.min.js?ver=16.13.1:25)
at Da (react-dom.min.js?ver=16.13.1:60)
at Pg (react-dom.min.js?ver=16.13.1:61)
Me @ react-dom.min.js?ver=16.13.1:125
Jh.f.componentDidCatch.c.callback @ react-dom.min.js?ver=16.13.1:139
Wg @ react-dom.min.js?ver=16.13.1:67
oj @ react-dom.min.js?ver=16.13.1:127
Aj @ react-dom.min.js?ver=16.13.1:160
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
ab @ react-dom.min.js?ver=16.13.1:154
Te @ react-dom.min.js?ver=16.13.1:146
(anonymous) @ react-dom.min.js?ver=16.13.1:61
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
Pg @ react-dom.min.js?ver=16.13.1:61
ha @ react-dom.min.js?ver=16.13.1:60
Ja @ react-dom.min.js?ver=16.13.1:224
ch @ react-dom.min.js?ver=16.13.1:93
e @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
t @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
b @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ redux-routine.min.js?ver=7f20dbcdb5d5645c977063e356eb95cf:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12
l @ rich-text.min.js?ver=a4eb1e306ca234461cdecbca651dd8d9:2
react-dom.min.js?ver=16.13.1:125 TypeError: Object(...) is not a function
at edit (editor.js?ver=1622014023:1)
at we (react-dom.min.js?ver=16.13.1:84)
at zj (react-dom.min.js?ver=16.13.1:226)
at Th (react-dom.min.js?ver=16.13.1:152)
at tj (react-dom.min.js?ver=16.13.1:152)
at Te (react-dom.min.js?ver=16.13.1:146)
at react-dom.min.js?ver=16.13.1:61
at unstable_runWithPriority (react.min.js?ver=16.13.1:25)
at Da (react-dom.min.js?ver=16.13.1:60)
at Pg (react-dom.min.js?ver=16.13.1:61)
Me @ react-dom.min.js?ver=16.13.1:125
Jh.f.componentDidCatch.c.callback @ react-dom.min.js?ver=16.13.1:139
Wg @ react-dom.min.js?ver=16.13.1:67
oj @ react-dom.min.js?ver=16.13.1:127
Aj @ react-dom.min.js?ver=16.13.1:160
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
ab @ react-dom.min.js?ver=16.13.1:154
Te @ react-dom.min.js?ver=16.13.1:146
(anonymous) @ react-dom.min.js?ver=16.13.1:61
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
Pg @ react-dom.min.js?ver=16.13.1:61
ha @ react-dom.min.js?ver=16.13.1:60
Ja @ react-dom.min.js?ver=16.13.1:224
ch @ react-dom.min.js?ver=16.13.1:93
e @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
t @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
b @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ redux-routine.min.js?ver=7f20dbcdb5d5645c977063e356eb95cf:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ data.min.js?ver=7bfa3a673439e85e459d5ec92d30fdda:2
(anonymous) @ block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12
l @ rich-text.min.js?ver=a4eb1e306ca234461cdecbca651dd8d9:2