Created attachment 188254 [details] bug screenshot I am a Chinese user, and all English text is machine-translated. I sincerely apologize for any inconvenience this may cause. I am certain this is a bug. It occurs when I use a split-screen display. When I drag a toolbar to another monitor, it appears normally. However, if I close the entire application and reopen it, the toolbar becomes invisible. Even when I use the "Switch Window" or "Workspace" function to reposition it back onto the same screen, it remains invisible. I've attached screenshots showing that the top panel of the workspace is still invisible, though clickable and functional. However, when I close and reopen the entire application, the toolbar becomes visible again. Please note, I suspect this may be related to my dual-monitor setup, but I believe it constitutes a bug. Although restarting the software automatically resolves it, I apologize for any inconvenience caused. Thank you once again for your contributions to Krita. 我是中国使用者，英文全是翻译软件翻译的，如果给您带来不便，我十分抱歉， 我很确定遇到的是一个bug，这个bug出现在我使用分屏显示器的时候，但我拖动了一个工具栏到另外一个显示器屏幕上的时候，显示正常，但如果我关闭了整个软件，再打开后这个工具栏将呈现不可见状态，这时我使用切换窗口 工作区把他重新定义到同一个屏幕上的时候，依旧不可见，我已经在附件中加入截图，最上面哪一派的工作区依旧不可见，但可以点击，并且正常使用上面的功能，这时，我再次关闭整个软件，再重新打开时，工具栏会重新变成可见状态，请注意，我认为这可能是由于我使用双屏幕导致的问题，但我认为这是一个bug，虽然软件重启后会自动修复，如果给您带来不便，我请求您不要介意，再次感谢你们对Krita的付出。