I get the exact same problem as Yamyams (12 February) "Infinite login screen". Stuck in loop when attempting to use this particular mod.
Problem seens to have resolved itself with the WG update this morning. Log attached
When will the historical naval ensigns be updated; it would resolve a lot of the angst regarding the flag issue. Please update b/c I truly prefer the historicl accurate flags flown by vessels.
Thank You and Happy Holidays