Lightorio (https://mods.factorio.com/mod/lightorio) adds lights (that function like invisible 1x1 lamps of sorts) to all factories. When moving entities with Even Pickier Dollies the light sorta clones itself and one of them stays in place while the entity gets a new one. Would've loved to see the fix for this, Lightorio is a beautiful mod and Even Pickier Dollies is great QoL tool.

P.S. The issue is reproducible in vanilla Factorio as well

Thank you for calling this out as a great QoL tool.

The lightorio mod creates "invisible" additional entities that are associated with the visible entities. When that entity is moved by EPD, the invisible one gets left behind (as EPD knows nothing about that lamp). The mod author needs to register the entities he wants to enhance with EPD using the api and then move these lamps when he receives a callback.

This can not be done from the EPD side; please report this to the author of the mod. As he did not publish a source repository, I can not send the author a patch,.

Will do that, thanks for the reply!