Linux, KDE 5 Plasma 5.27, Tixati 3.18. Need more details?
The window action buttons (minimize, close) are not aligned to the right side at the top. There's a small gap that goes away when the window is resized.
Steps:
1. Open Tixati Settings
2. Notice there's a gap as wide as a single icon (like somethings missing)
3. Suppose you are in the "Fonts" category. You need to open something that's wider than Fonts to force a full window update
4. Open "Connections" settings
5. Window was redrawn and the "minimize and close" buttons are now in their correct position
Screenshot:
https://0x0.st/HZgh.png