How hot did it get. If travelling too slow on trails it may have allowed it to get too hot. The ecu may have limited you until it coooled back down.
Happens in cars so would think it could be a safety feature in most ecu software.
C30F Power Up needle
2 turns out
Baffle out, Screens In
It starts,it runs,it gets to where all CRFs can get to without the valve or valve plate dramas