XEEN: Loading a save file first causes a crash

[RX4NT9UP]

Something interesting happened recently. When I restore my game save from scummvm or the main menu, scummvm crashes with the following message:

scummvm: ./common/array.h:192: T& Common::Array<T>::operator[](Common::Array<T>::size_type) [with T = Xeen::MazeMonster; Common::Array<T>::size_type = unsigned int]: Assertion `idx < _size' failed.

If I start a new game or load a different save file, then load this one after, it works.

Version:
ScummVM 2.1.1 (Mar 11 2020 10:32:58)
Features compiled in: Vorbis FLAC MP3 ALSA SEQ TiMidity RGB zLib MPEG2 FluidSynth Theora AAC A/52 FreeType2 JPEG PNG cloud (servers, local)

Game Version:
DOS CD

OS:
Linux OpenSuse Leap 15.1

Thanks