Hey, thanks for the great mod! Unfortunately some mods don't play nice with it. Specifically I have the issue of faster belts created by the "Better Quality" mod getting mixed in with the default belts.
F.e.: Building with 45/s Express belt -> Change Build layer correctly switches to 45/s Express Underground -> Change Build layer incorrectly switches to 54/s (Uncommon) Express Belt.
Is there a way you could fix that on yours mods site? Or is it a problem of the Better Quality mod? (or even both?)

Very likely! I've not considered quality in the mod, so very likely that it breaks in some ways.

I'll fix it for the next version.

Good to hear, looking forward to it!

Should be up now

Thanks for the quick update, the issue with "Better Quality" still persists unfortunately. I think it might have to do with some workaround these incremental belt upgrades use. As in, changing the quality of a belt in cursor doesn't change the speed of the belt until you actually place it. I'm not familiar with Factorio modding but I think the mod isn't changing the speed of quality vanilla belts, but generating new variants that are swapped in when you place a vanilla belt with higher quality.