Prefacing this with mentioning that during my playtime through 1.4.4, I had a lot of fun with this level pack! It's very well made! That, and I play the game on a Mac OS, so things may work differently.
I don't know why, but I keep getting SIGSEVs in different areas. Whether I move off the path, or continue through the normal path, it almost seems to be random.
In this case, playing through v1.5's Nightlight Gully caused me to SIGSEV constantly for some reason. And, if I recall correctly, back in 1.4.4, Cyberdime Zone (now Cyberdime Core) Act 1 used to SIGSEV me during one of the Emerald Shard segments-- Specifically the one right in front of the player when they spawn in the level.
I really don't know why it's happening, especially now in Nightlight Gully Act 2; I just keep getting SIGSEVs constantly through the level. Is there something that can be done about that?
By the way, now that I know about the "Latest_log" file, I can at least show this is the last stuff in the file:
"Process killed by signal: SIGSEGV - segment violation
I_ShutdownTcpDriver: shut down
I_ShutdownSystem(): end of logstream."