[wp-trac] [WordPress Trac] #62450: TinyMCE editor doesn't load properly when initializing on Visual Tab (Firefox) [again]

[WordPress Trac]

#62450: TinyMCE editor doesn't load properly when initializing on Visual Tab
(Firefox) [again]
-------------------------------------+-------------------------------------
 Reporter:  patkemper                |       Owner:  (none)
     Type:  defect (bug)             |      Status:  reopened
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  TinyMCE                  |     Version:  6.7
 Severity:  major                    |  Resolution:
 Keywords:  reporter-feedback        |     Focuses:  javascript,
  needs-testing-info close needs-    |  administration
  screenshots                        |
-------------------------------------+-------------------------------------
Changes (by adrien3763):

 * component:  Editor => TinyMCE
 * severity:  normal => major


Comment:

 I'm experiencing exactly the same bug on several WordPress sites. When
 updating from version 6.6.2 to 6.7, on Firefox, the ACF (PRO) WYSIWYG
 fields randomly (or at least I haven't identified the exact trigger)
 display no content in visual mode. In text mode, the content is there, but
 when switching back to visual mode, it disappears, and the well-known JS
 console error appears.

 I've updated both WordPress and ACF PRO, but the issue is still present.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62450#comment:5>
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