Heroes 5.5 WarGame Edition - Tactical Edition.

Maybe – it’s worth a try, but for now, I’ll just remove it. We could try contacting the authors of the RTA and ask them about this – perhaps they tried to fix this bug, and if they removed the perk, it means they couldn’t fix it.

Added 6 minutes later
The first difference is the true line (I think it’s responsible for the spell’s targeting). This line exists for the mine but not for the crystal and the wall, but it does exist for the hive – so it’s a dead end.

Added 3 minutes later
Differences in the line: For the mine: TARGET_NEUTRAL For the three spells: TARGET_HOSTILE

Added 2 minutes later
Okay, the true line is actually present in all of them, it’s just located differently.

Added 1 minute later
I’ll try changing hostility to neutrality.

Added 8 minutes later
I tried – it didn’t help – there were no changes at all