HoMM3 HD bug reports.

SoD was last updated on 12/04/2018
Is this your first game since then?

If no one else is experiencing positive results, but you are in one specific game, it means the map/save is bugged.

In any case, and especially in your case, you need daily saves with an indication of which day and under what circumstances the critical error occurs.

In the evening, I will send daily saves with a description of when the critical error occurred. I was able to defeat the first critical error – without reviewing the turn, but the opponent has a problem; he cannot select two heroes out of eight.
I meant not updating SoD, but updating the HD mod, but to be honest, I don't understand much about it; you are more aware of the reason for these critical errors. My question is simple: is it possible to defeat these critical errors and continue playing this save, or does someone need to replay a day so that the critical errors do not appear?

Added after 2 hours 8 minutes
I sent the daily saves and a description of the critical error by email.