Exploding 109 bug - what happens in the cockpit?

Has not much to do with biased (I fly both sides). It is just a reminder that there is much more wrong imho with the DM than just this one. Anyhow we even do not know if what is in game shown as an explosion should be an explosion.

Because with the current bug there are two possibilities:
- the fuel tank exploded really and should have exploded as conditions for explosion were met. Then it is wrong that a 109 flies on.
- the fuel tank should have not exploded as the conditions were not met but it is shown as explosion. Then it is wrong that it is shown as explosion.

Another issue is that I manage to explode 109s and sometimes Hurris but why never the spit? I do not want to say a priori that it's a bug; I say this that the DM as it currently works is damn intransparent in why things happen in the way they do and in general I have some doubts about the DM. That has nothing to do with biased.