Compatibility

AntiCheats like Intave, Polar and Karhu

ViaVersion

ViaBackwards version 5.1.1 or newer (Enable handle-pings-as-inv-acknowledgements)

Folia

ProtocolLib versions older than 5.0.0

Yatopia, Mohist

Any anticrash running on the same server instance as Sierra

TLauncher

Schematica / Litematica

Software interfering with Transaction packets

ProtocolSupport