unclear bug Auto-translated

Something completely incomprehensible is happening in Heroes 5. The thing is, during battles, after summoned creatures (elementals, phoenixes, doppelgangers, etc.) die, a blue glow remains, and after that, the game crashes with a prompt to send an error report. I thought it might be a video memory issue, but increasing the parameters in the BIOS didn't help (video card: Radeon 9600 128MB). Does anyone know what the problem is?

I suspect you have version 1.4 of the game. Setting something like `camera cinematic=0` might help reduce the likelihood of crashes. However, the only way to completely fix the problem is to install a newer patch or revert to an earlier version.

The game version is indeed 1.4. I don't want to download the patch at a speed of 30 Kbps. The only option left is to revert to an earlier version, but how do I do that? And will I lose my save files?

The bug is fixed with patch 1.41. It's small – it consists of a single executable file. You can simply download a cracked version. I won't tell you where to find it, as that's prohibited. However, your save files will likely remain intact. If you don't have a copy of the previous version, the only way to revert is to reinstall the game. After reverting or installing any patch other than 1.41, you'll need to start the mission from the beginning through the campaign menu. After installing 1.41, I haven't experienced any crashes. After installing 1.5, I replayed the 1st and 3rd campaigns and then returned to the 5th. In 1.5, training and necromancy have been significantly changed.