http://bugs.winehq.org/show_bug.cgi?id=59396 Bug ID: 59396 Summary: Tabbed UI in proprietary IDE broken after update – tabs are shown as separate windows Product: Wine Version: 11.1 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs@list.winehq.org Reporter: Wagner.a18@yahoo.com Distribution: --- Since a recent update of a proprietary Windows-based IDE from my automation/control system vendor, the tabbed user interface no longer works correctly when running under Wine. Previously, the IDE displayed its editors and views as tabs within a single main window (similar to applications like Visual Studio Code). After the update, these tabs are now opened as separate top-level windows instead of being embedded as tabs in the main application window. This behavior only occurs when running the application with Wine. On native Windows systems, the IDE still behaves correctly and shows tabs as expected. Expected behavior: Editors and views should be displayed as tabs within the main IDE window, as before the update. Actual behavior: Each tab is opened as an individual window, breaking the intended tabbed workflow and making the IDE difficult to use. Regression: Yes. The tabbed interface worked correctly with earlier versions of the IDE under Wine. The issue appeared immediately after the vendor updated the application. Additional notes: The application is proprietary, so source code is not available. The issue seems related to how the updated IDE handles tabbed/docked windows or window embedding under Wine. Environment: Wine version: v11.1 Wine architecture: win64 / win32 Distribution: arch linux Desktop environment / window manager: kde plasma Application version: proprietary ide for control systems -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.