Cycling activities loaded with Edge 500 have elevation correction enabled (default must be disabled due to the barometer on the device) and deactivation is impossible.
I've found that only activities loaded with Garmin Express are affected; deleting and reloading via Communicator Plugin solve the issue... one (of many) bugs introduced by recent updates. Painful!!
Is almost a month that GC has this and other major problems... hope they fix soon (cross finger for data integrity) :mad: