I was in a Steel Path Survival using a Blood Rush Glaive Prime build and I was consistently getting red crits until the acolyte spawned. After that I think my blood rush got disabled and I could only get yellow crits. After restarting the mission, I can confirm that this always happens when the Acolyte spawns. I even suicided after the Acolyte spawns and it fixed the bug, until another Acolyte spawned and the bug happened again. I'm assuming something went wrong with the coding relating Acolytes and Acolyte mods and hope a fix comes soon for this.