[2.2.10 pre2+] Invasion crash

Saw this in the discord, mirroring it here. Invasion Zone from OLDC 2021 Round 2 crashes shortly after loading. I am unsure when this was introduced but it is likely recent as a I played through the OLDC on the latest next build at the time and did not encounter this issue.

Crash log:

Error occurred on Tuesday, March 1, 2022 at 21:47:35.

srb2win.exe caused an Access Violation at location 004ED693 in module srb2win.exe Writing to location 0000007C.

Registers:
eax=00021f0c ebx=1c0e64f8 ecx=00010000 edx=00000002 esi=00000400 edi=00030000
eip=004ed693 esp=05699080 ebp=00000000 iopl=0         nv up ei pl nz ac po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00210216

AddrPC   Params
004ED693 00000000 00000000 00000000  srb2win.exe!A_Boss2Chase