Walkthroughs for custom maps.

So, what's the point of playing with HD if the game still crashes?

There's still a point in the convenience that the mod provides. First of all, it's more convenient to play in windowed mode with a color depth of 32 bits. You can easily switch between other programs and back.
That's why I often play without HD+: I want to be sure that I'm not disrupting the gameplay intended by the map creator (remember: even the placement of obstacles on the battlefields differs with and without HD+).
And when the game crashes or freezes, that's when I enable HD+. And when the month of plague or the week of a real monster arrives, I enable SOD_SP only to advance the turn. I make a save, exit, restart, and disable SOD_SP or HD+.
By the way, it has already been mentioned that the bug causing crashes when an enemy hero has Alliance angels in their hand in HD mode has been fixed.