Given that I never run FRED, I tried this out.
Opened FRED2_Open (Builds 4939-4968). Shift+N. Put in a Name "101st Test". Hit the Logo Button. Crash.
Hmmm.
Re-Opened FRED2. Placed 4 ships, formed BLAZI--err, wing (CTRL+W). Right-Clicked lead and chose Edit Wing. Hit Squad Logo, Crash.
Retail and MediaVP's (3.6.8zeta+710 and Internal 3.6.10).
Debug generates this:
Debug Assertion Failed!
Program: C\Freespace2\fred2_open_3_6_10d.exe
File: f:\dd\vctools\crt_bld\self_x86\crt\src\drive.c
Line: 109
Expression: ("Invalid Drive Index",0)
For information on how your program can cause an assert
failure, see the Visual C++ documentation on asserts.
(Press Retry to debug the application)