the open/save box is very slow about qucs_s HOT 5 CLOSED

Sorry, I cannot reproduce this issue. And I cannot fix what I cannot reproduce. I am using Arch(Manjaro) with the latest KDE6+Wayland too and everything works as expected on my machine. Furthermore I have never seen the mentioned issues on other platforms including X11 and Windows. Everything works as expected too. Are you using Wayland? Do you have qt6-wayland package installed? This package is not installed by default and the missing package may produce very weird bugs.

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Thanks a lot for your kindly help.
I use X11, because my screen is flashing with wayland, I guess it is linked with my GTX1650 driver. Anyway, I will try wayland in near further, hope it can solve the issue.

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The application should work properly using X11 and Qt6 with default settings. I never observed the mentioned issues using X11. Probably you have something wrong with Qt6 and its platform backends itself. If nothing helps you may try to rebuild the Qucs-S using Qt5.15. The issue still be cannot reproduce.

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Also try to check the settings in qt6ct tool. You may have some effects enabled.

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I try a lot. Finally, after I new create a user, the open/save box is ok now with the new user. So there must be some problem in my setting. I think this issue can be closed. Thanks a lot for your time and help@ra3xdh

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