This is odd, and I may be looking int he wrong direction or just getting more and more confused as I try to figure this out... and it is late.
I have recently gotten back into gaming on DOSBox and have once again dug out some of my games and started getting them installed and playable.
I have the Aces Complete Collector's Edition CD (sadly, everything else got lost, except the manual) and I installed Aces of the Pacific.
I set it to use Roland/MT32 and have 4 other games using it without issue.
I run the bat file that is installed and after the Dynamics and game intro play, DOSBox crashes.
I look at the bat file and I see:

1@echo off 
2C:
3cd \DOSGAMES\AOTP
4gcd -nC:\DOSGAMES\AOTP
5C:

Everything seem OK. I run the GCD.COM file directly and again it crashes. I pull out of full screen and watch the title go from GCD to PS. There is a PS.EXE in the AOTP directory. I run it and it complains about not enough memory.
There is nothing else that the autoexec section calls at the moment as I install a game, play for 10 or 15 minutes to verify it works, then go to the next.
I installed DOSBox-x as I played with that before and I like some of the features it has and I thought I would try running with that. Outside of MOUNTing the folder with my installs, still not doing anything else, I replicate the same issue. PS.EXE complains of not enough memory.
Through troubleshooting and starting to get tired, I managed to turn of MT32 and have Sound Blaster handling thew music and it runs without issue.
I will be getting some sleep soon as it is time for that, and will play with the [dos] settings in DOSBox to see if maybe something there needs to change for this game. I am just stumped as this is the only game out of 15 that I have installed to give me any troubles.
Does anyone have an idea what could be happening here? Outside of a mostly clean conf file, I haven't changed much. Just the [MIDI] section and {Autoexec] for the "drive" mounting.

For the infos: ( I can provide more in about 8 hours if needed)
CPU Intel i5-6600
MEM 16 GB RAM
GFX RX 580 8GB
OS Arch Linux 64bit (Zen kernel) 5.16.10 (yeah, I switched to main kernel 5.16.10.arch1.1 and still get the same problem)
DOSBox 0.74-3 / DOSBox-X 0.83.22
MUNT mt32emu_qt 1.8.0
MUNT Library v 2.5.3
Qt Library 5.15.2
MT32 ROMs... not sure which version these are. I remember downloading them two years ago and I believe are the LAPC-1 versions.