I think there is still some compatibility issue with Corona 6.1 and R23 Asset Manager.
I use the asset manager very intensly, to relink textures used from the Content browser presets to absloute paths,
because since version 6.1 there are serious performance issues with loading textures from presets (read: no absolute paths) and superslow rendering material previews.
Therefore I have to relink a few times every hour to keep C4D fast, the difference is really huge when using absolute paths everywhere.
But the actual problem I experience now is this:
When I use an IES light source, inside a corona light, from a preset (either a preset for IES database, or an IES included in imported lighting preset) it is impossible to replace or relink the IES file in the asset manager. It seems to work, and it's changing to the absolute path, but after a few seconds the path flips back to the preset IES. Equal when using the replace function.
When using a regular/native light this functionality works as expected...
Thanks for some info on this,