[wp-trac] [WordPress Trac] #54590: Bug in footer of full site editing WP 5.9 Beta 1

[WordPress Trac]

#54590: Bug in footer of full site editing WP 5.9 Beta 1
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 Reporter:  ejca               |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  5.9
Component:  Editor             |     Version:  trunk
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by ejca):

 Hy, Tonya.
 I've just opened video access, sorry :)
 I used a clean installation: only WordPress 5.9 Beta 1 with Twenty Twenty
 Two theme. Later, I've added Gutemberg, but nothing changed.
 The problem is in footer block. I added a button. But, when I want to
 delete it with "Remove button" in submemu, the system says: "The editor
 has encountered an unexpected error", and two buttons: "Attempt recovery"
 and "Copy the error". "Copy the error" doesn't seem to do nothing. When I
 click "Attempt recovery", I go back to the starting point
 Ty.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54590#comment:2>
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