[wp-trac] [WordPress Trac] #39550: Some Non-image files fail to upload after 4.7.1

[WordPress Trac]

#39550: Some Non-image files fail to upload after 4.7.1
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 Reporter:  greatislander           |       Owner:  joemcgill
     Type:  defect (bug)            |      Status:  assigned
 Priority:  normal                  |   Milestone:  4.7.2
Component:  Upload                  |     Version:  4.7.1
 Severity:  critical                |  Resolution:
 Keywords:  has-patch dev-feedback  |     Focuses:
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Comment (by hearvox):

 We (Echoes.org) were also no longer able to upload .m4a files in 4.7.1.
 Disable Real MIME Check plugin fixed it. I'll monitor this ticket: We'd be
 happy to do any testing.

 Thanks for everyone's work on this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39550#comment:79>
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