This is most likely due to your PhysX simulation settings. Check whether you have 'Use PhysX simulation' switched ON or OFF.
Best smoke behaviour is usually seen when PXS is set to OFF.
Most routes do not include the bounding boxes for particle collision detection behaviour to justify turning this feature ON.
This is expected since the only [supported] way to install payware is by downloading through the game. Copying using .cdps is not supported (as the textures will be missing).
Delete all the faulty assets, and install your DLC using Content Store and there will be no errors.
Sanek17 -
This is most likely due to your PhysX simulation settings. Check whether you have 'Use PhysX simulation' switched ON or OFF.
Best smoke behaviour is usually seen when PXS is set to OFF.
Most routes do not include the bounding boxes for particle collision detection behaviour to justify turning this feature ON.
Please submit a bug report with full details including when this last wokred correctly, when it occurs (e.g. surveyor, driver, both? When moving, when placed etc.)
Also provide a link to access to the content https://n3vgames.typeform.com/to/xRdryu