Starting program: /usr/bin/falkon 
/usr/lib/../share/gcc-9.2.0/python/libstdcxx/v6/xmethods.py:731: SyntaxWarning: list indices must be integers or slices, not str; perhaps you missed a comma?
  refcounts = ['_M_refcount']['_M_pi']
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe49d9700 (LWP 49071)]
[New Thread 0x7fffde1ce700 (LWP 49072)]
[New Thread 0x7fffdd9cd700 (LWP 49073)]
[New Thread 0x7fffdd1cc700 (LWP 49074)]
[New Thread 0x7fffdc9cb700 (LWP 49075)]
[New Thread 0x7fffcec4e700 (LWP 49076)]

Thread 1 "falkon" received signal SIGSEGV, Segmentation fault.
0x00007fffee8a169b in QImage::detach() () from /usr/lib/libQt5Gui.so.5