When experimenting with AreaBuffProvider criteria in railgun accelerator, i came across game crashes without error log at Build panel. By observation, buff loop(s) might have caused infinite loop of calculating buff %, resulting in sudden game crash.
The crashes can be reproduced in following examples

Example A (right): Feed loop?
By commenting rot = 0 at criteria of railgun accelerator buff providers, two accelerator modules can connect & buff each other head-on, causing a buff loop and crash the game.
Example B (left): Modded loop
Using a prototype railgun accelerator elbow part, a buff loop can be created.
The game would crash when player attempt to connect the last (bottom) piece.
Above cases are buff loop in its simplest forms. Once AreaBuffProvider is adopted in mods, a bigger ship can easily form buff loop(s) that is harder to detect by naked eye.