[Bug 51698] New: ucrt stdio's stdout does not flush

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51698

Bug ID: 51698
           Summary: ucrt stdio's stdout does not flush
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: api-ms-win-*
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Not msvcrt. UCRT does not correctly flush. why?