[wp-trac] [WordPress Trac] #49751: Old Featured Images (Thumbnails) Broken in 5.4

[WordPress Trac]

#49751: Old Featured Images (Thumbnails) Broken in 5.4
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 Reporter:  ispreview        |       Owner:  (none)
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  5.4.1
Component:  Post Thumbnails  |     Version:  5.4
 Severity:  major            |  Resolution:
 Keywords:                   |     Focuses:
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Comment (by whyisjake):

 It sounds like this is a plugin issue, not directly related to core
 changes. I am thinking we can bump from the 5.4.1 milestone and close with
 `invalid`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/49751#comment:12>
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