[Bug 48252] New: Input is dropped while drawing perfectly-vertical lines if tablet is set to 'Relative' mode

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48252

Bug ID: 48252
           Summary: Input is dropped while drawing perfectly-vertical
                    lines if tablet is set to 'Relative' mode
           Product: Wine
           Version: 4.21
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wintab32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ArchLinux

Hello there, I'm having issues in Clip Studio Paint where if the tablet is set
to relative mode input is completely lost if the lines are perfectly vertical.

I've tried this in both Wine 4.21, and Wine 4.21 staging, while in staging the
terminal outputs "002c:fixme:wintab32:motion_event Negative orAltitude
detected" for each motion event.

This issue has existed for a number of Wine releases, likely dating back even
further than wine 3.x, terminal output however has been somewhat new.

Video of the problem, recorded using Clip Studio Paint Pro v1.9.4 running on
the latest Wine 4.21 staging from Manjaro repository:
https://streamable.com/jxi6u

A download for Clip Studio Paint (v1.9.5) can be found at: 
https://www.clipstudio.net/en/dl

(Although recorded in v1.9.4, the issue has been present for a number of
releases, and is still present in the latest release v1.9.5.)