Fairy Lights aren't saved as part of ReCom structures.

[Vivrik]

Issue detected via saving "TheBlackStar" in RecCom with white, meteor-style lights that were no longer present when structure was generated by command afterward to continue build.

[otakup0pe]

I sense this is the same underlying issue with better records bits linking up with each other / the original structure as well. When I brought it up in the better records discord, SoundTech (lead dev?) said

I'm not quite sure how recurrent complex copies tile entites, sounds like an incompatibility with specifically how block positions for wire connections are stored. I'd bet it doesn't happen without a speaker connected to a radio?