[wp-trac] [WordPress Trac] #44402: Flickering Tinymce Link toolbox on mouseover. (Only on Windows) - introduced in 4.9.6

[WordPress Trac]

#44402: Flickering Tinymce Link toolbox on mouseover. (Only on Windows) -
introduced in 4.9.6
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 Reporter:  jesperher          |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  TinyMCE            |     Version:  4.9.6
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by Howdy_McGee):

 Related: #44911

 As far as I can tell this has something to do with the tooltips. If I
 remove the tooltip for the `wp_link_apply` button, plugins.js LN 596, I
 can hover the button fine. If I open the linkbox and hover a TinyMCE
 toolbar button, the linkbox also flickers (hides and reappears). Maybe
 during the positioning of the tooltip or there's some kind of bug on
 windows chrome with how the tooltip is being drawn.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44402#comment:7>
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