libQt5Gui 32 bit lib fails on fedora 33, 32, 31

I don’t seem to be able to run my 32 bit apps on fedora due to this bug in “QColor”.
Basically I installed the 32 bit QT libs on fed 33 ( etc ) . I had to toss the webengine, but the rest has been running for quite some time ( years ).

Does anyone have any idea how to solve this:: ?

#209496 0xf6c40c02 in QColor::dark(int) const () from /lib/libQt5Gui.so.5
#209497 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313
#209498 0xf6ab66f9 in qt_palette_from_color(QPalette&, QColor const&) () from /lib/libQt5Gui.so.5
#209499 0xf6ab68b0 in QPalette::QPalette() () from /lib/libQt5Gui.so.5
#209500 0xf6a8987d in QGuiApplicationPrivate::updatePalette() () from /lib/libQt5Gui.so.5
#209501 0xf6a8fefa in QGuiApplicationPrivate::init() () from /lib/libQt5Gui.so.5
#209502 0xf716589e in QApplicationPrivate::init() () from /lib/libQt5Widgets.so.5
#209503 0xf7165975 in QApplication::QApplication(int&, char**, int) () from /lib/libQt5Widgets.so.5
#209504 0x08072510 in main (argc=, argv=0xffffcdb4) at main.cpp:12
(gdb)
(gdb) q

It’s a mystery. There were no OS updates . Russians spies would be my guess.

The printout is wee over-trimmed. The problem is that the call to “darker” recurses infinitely . eg:

209479 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313
#209480 0xf6c40c02 in QColor::dark(int) const () from /lib/libQt5Gui.so.5
#209481 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313
#209482 0xf6c40c02 in QColor::dark(int) const () from /lib/libQt5Gui.so.5
#209483 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313
#209484 0xf6c40c02 in QColor::dark(int) const () from /lib/libQt5Gui.so.5
#209485 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313
#209486 0xf6c40c02 in QColor::dark(int) const () from /lib/libQt5Gui.so.5
#209487 0xf7e7c4d1 in QColor::darker (this=0xffffbebc, f=200) at /usr/include/qt5/QtGui/qcolor.h:313

Hello @oddasee ,
Welcome to the community. I’m not certain about any spies, but I Think given a little time here, someone can help solve this with you. Just out of curiosity, can you get it working on F34?

Thank you very much for getting back to me Steve

I expect the answer will be no. And there seem to be special issues with the Acer Adam notebook.
But I will load a fresh version of f34 and get back to you.

Thanks very much again!