Mine sticks in there too, but I can get it out from the inside (wheel hub side) as the hole for the thru axle in the frame is slightly larger than the washer internal diameter.
A small flat screw driver or nail punch resting on the tiny exposed lip of the washer and then a gentle hit with a hammer pushes it out.
A small flat screw driver or nail punch resting on the tiny exposed lip of the washer and then a gentle hit with a hammer pushes it out.



