I installed Visual Studio 6 with service pack 6 on Win10x64 (Virtualbox VM).
Indeed, the fix for the cluster grenade did segfault on version 1.07. Although on version 1.10 everything worked fine.
I rewrote the fix and tested it on version 1.07. Everything is working. (I started the server and tested with different friendly fire modes)
At the same time, I disabled the damage from the cluster grenade at the Easy and Tourist difficulty levels.
Fix (Source code) and ready-made libraries for 1.07 at the link.
Compiled from the latest source code archive from January 6th (Update 5)
https://disk.yandex.ru/d/joEZLY6VW1rvGg
Here, for clarity:
https://github.com/tx00100xt/SE1-TSE-Sequel/commit/d6c3f90fc9c00188ab5a2b2fa46ba...