Maybe you can try with the other crt file (the Denise one), maybe the TeensyROM is using the CRT ID 79. Else you have to ask to TeensyROM's creator where is the problem.
Viewing post in SNK vs CAPCOM for C64/C128 - Stronger Edition comments
That's it. I actually changed the HW code byte on the CRT images and they are launching now. Had few crashes though when playing...but not consistently. Testing on C64 and C128. I've mentioned it to Travis and he's looking at a firmware change. What's different about the Denise one? Just the HW code?