Hello, related to this reported months ago [1.8.9] invalid-lookup-uuids option is broken · Issue #804 · SpongePowered/SpongeForge · GitHub
im having that issue, this is spamming my console like every second
using spongeforge-1.10.2-2079-5.0.0-BETA-1732
and forge-1.10.2-12.18.1.2079-installer