I have two wallets running on two different computers and one wallet is almost always a few blocks behind with the debug.log filled with:
***** Core LLP: Unified Samples Out of Drift Scope Current (8205) Samples (8234)

Both wallets have 8 nodes connected and the time is also synchronized.

This is the part in the source for the error but it's no help to me: https://github.com/Nexusoft/Nexus/blob/master/src/core/unifiedtime.cpp#L287

What is causing this?