[Bug 50444] New: Text not shown/drawn or hidden starting in Wine 5.18

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50444

Bug ID: 50444
           Summary: Text not shown/drawn or hidden starting in Wine 5.18
           Product: Wine
           Version: 5.18
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 69057
  --> https://bugs.winehq.org/attachment.cgi?id=69057
The validation pane (the left-side wide window at screen bottom) as displayed
when running CSS HTML Validator under Wine 3 through Wine 5.17.

POSTING this bug report from a CSS HTML Validator user that uses and test CSS
HTML Validator under Wine.

Going back to at least Wine 3, the CSS HTML Validator validation pane has
always displayed correctly until Wine 5.18, when the upgrade from Wine 5.17 to
Wine 5.18 resulted in the validation pane always displaying blank. The
validation pane is located at the bottom of the full CSS HTML Validator window.

See the attached screenshots, I cropped out most of the upper part of the full
CSS HTML Validator window.