Odd. I didn't realize that the problem could lie in the model too.
If the issue is still in the DP file just remove the triggers in the DP file and hopefully you will have a solid plane again.
Just look for Break lines the DP:
[EFFECTS.XX]
; System = Nose Structure
effect.0=10,LIBRARY,fx_smkpuff_s,
effect.1=30,LIBRARY,fx_engfire_s,
effect.2=60,LIBRARY,fx_engfire_m,
effect.3=95[LIBRARY,fx_airexpl_l,
effect.4=100,BREAK,6, <<<<----- Offending number
effect.4=100,BREAK,, <<<<---- Corrected data line
In Yashicko's DP file, look for Effects numbers:
0, 14; 18, 21; 22, 23, 27; 30, 31; 33, 34.
Sometime ago, I tested all the available B-29 aircraft for the highest frame rates. Yashico's Superfortress won hands down with almost a third better frame rates than the next contender. For a combination of detail and reasonable frame rates, Gnoopy's B-29 is probably the best overal B-29. All of them are good planes though. It just depends what you need, detail or frame rates.
1. Silvia's (Piloto azul): 90 FPS
2. Sky Queen: 100 FPS
3. VB: 40 FPS
4. Yashico AI: 145 FPS
5. Gnoopy's: 65 FPS