Ich werde dir bald dabei mal helfen, doch ich denke, dass das problem am anderen teil des jbeams liegt, und somit wi einen kleinen teil kaputt macht und es deshalb nicht mehr funktioniert. Beamng ist sehr sensibel bei solchen dingen
After the last update, your mod as well as some others that add Engines to the Gavril D-Series has a bug that when equipping such mod engine the transmission and exhaust are dropped hitting the ground, the vehicle runs and the exhaust works normally, but when passing through some obstacles these pieces break. i tested your mod with no other installed to make sure it is not a conflict / bug with any other. below are the prints
oh yes, the reason is, that the dseries got updated, i will need to update the mod to adress several issues. im sorry but it could take some time since im not too big into the modding anymore, i will probably do it tho