I, and the other players on my server, keep getting the same Refined Storage advancements over and over again, even though we’ve already gotten them before.

Minecraft version: 1.12.2
Forge version: 14.23.0.2552
Refined Storage version: 1.5.23

Not an RS problem. Something is messing up the advancement logic probably, RS uses only vanilla constructs.

@raoulvdberge It hasn’t happened with other mods.

Than reproduce this with only RS and if it happens report it back here. Otherwise remove mods until it will happen and than report it to correct project issues.