The fluid indicators of the subj mod remain after deconstruction; I've added the various entity names to the 'ignore' list (below), which, upon updating removes the visual artefacts, but upon placing a new loader and removing it, it spawns a new artefact, which does not get removed automatically unless I update the 'ignore' list again.

To clarify, the I only add like, a space between entities to force it to update.
Visual artefacts are maintained between saves, even with the ignore list.

aai-loader,aai-loader-lane-filtering,aai-loader-stacking,aai-loader-stacking-lane-filtering,aai-fast-loader,aai-fast-loader-lane-filtering,aai-fast-loader-stacking,aai-fast-loader-stacking-lane-filtering,aai-express-loader,aai-express-loader-lane-filtering,aai-express-loader-stacking,aai-express-loader-stacking-lane-filtering,aai-turbo-loader,aai-turbo-loader-lane-filtering,aai-turbo-loader-stacking,aai-turbo-loader-stacking-lane-filtering,aai-extreme-loader,aai-ultimate-loader,aai-high-speed-loader

Is there a way to automatically force the collection to update?
Or am I just doing it wrong?

thanks,

Likely to be something else, then. I'm thinking some other mod adds/removes entities through script and therefore don't trigger this mod.

Can you post a full list of your used mods?

I'm thinking of adding a automatic updating of selected/opened items, which would at least hide the issue in certain cases.

OK it seems like it's the fluid part of the AAI-loaders, the same names but with "-pipe" after it e.g. "aai-loader-pipe"

I want to support those pipes in the mod, but it's not trivial to delete them correctly. I have several ideas.

For now, just add "-pipe" to each loader i.e.

aai-loader-pipe,aai-loader-lane-filtering-pipe,aai-loader-stacking-pipe,aai-loader-stacking-lane-filtering-pipe,aai-fast-loader-pipe,aai-fast-loader-lane-filtering-pipe,aai-fast-loader-stacking-pipe,aai-fast-loader-stacking-lane-filtering-pipe,aai-express-loader-pipe,aai-express-loader-lane-filtering-pipe,aai-express-loader-stacking-pipe,aai-express-loader-stacking-lane-filtering-pipe,aai-turbo-loader-pipe,aai-turbo-loader-lane-filtering-pipe,aai-turbo-loader-stacking-pipe,aai-turbo-loader-stacking-lane-filtering-pipe,aai-extreme-loader-pipe,aai-ultimate-loader-pipe,aai-high-speed-loader-pipe

Found a workaround for the issue. Would be fixed next version.