Seems to be WSJTX related. There's mentions of it over on the WSJTX groups.io.
gdb produces this:
Thread 1 "wsjtx" received signal SIGSEGV, Segmentation fault.
0xb58f8c40 in QtPrivate::qustrchr(QStringView, unsigned short) ()
?? from /lib/arm-linux-gnueabihf/libQt5Core.so.5
I'll wait for an update, hopefully there's a fix.
73 Andrew, K1YMI