Hey lads, I think it could be helpful to identify under what conditions are the engines exploding. By presenting our cases we might be able to find one situation which is common across all cases.

Here's what's been happening to me:

Initially I had multiple titans on my ship:
2 generating up thrust
2 generating back thrust
4 generating forward thrust

The 4 forward thrusters were placed first. They are supported by their little feetsies (the supports on their bottom) and also have a wall attached to them directly behind. Nothing on the sides.

These 4 engines have NEVER exploded on me.

However if I generated forward thrust, the back thrusters would explode after a moment of generating back thrust. The same would happen with the up thrusters.

Unfortunately, even when I surrounded those thrusters the same way I had with the 4 forward ones, they would still explode. However they would explode every time they generated thrust- sometimes they would manage to bring the ship to a halt, and then explode next time they'd be used.

Hence:
-Surrounding blocks(points of contact with the ship) may affect this behaviour.
-Having titans operating in more than one direction may be causing this
-It's black voodoo magic and humanity was never supposed to have this much power at their hands.
-Could this be related to their durability? I'm not sure how engine physics work in SE but what if the low durability mixed with UNLIMITED POWER is causing them to tear themselves apart?