Perfect!
Just been playing through a match and appears to be a unit promotion issue.
ERROR: CCacheLoader failed to find archived or source file for: "simulation/templates/units/brit_infantry_swordsman_e.xml"
ERROR: Failed to load entity template 'units/brit_infantry_swordsman_e'
ERROR: Error in timer on entity 4227, IID98, function TimerHandler: TypeError: template is undefined Promotion.prototype.IncreaseXp@simulation/components/Promotion.js:82:8 Attacking.prototype.HandleAttackEffects@simulation/helpers/Attacking.js:349:3 Attack.prototype.PerformAttack@simulation/components/Attack.js:559:3 UnitAI.prototype.UnitFsmSpec.INDIVIDUAL.COMBAT.ATTACKING.Timer@simulation/components/UnitAI.js:2016:7 FSM.prototype.ProcessMessage@simulation/helpers/FSM.js:265:12 UnitAI.prototype.TimerHandler@simulation/components/UnitAI.js:4115:2 Timer.prototype.OnUpdate@simulation/components/Timer.js:139:4
WIll update to the new branch and try.