Yes I've got the same problem, also different on each side like with yours.Does anyone else have the issue that the four extendable positions for the face mask don't lock properly? On the right if pulled out to position four although it sounds like it clicks in the slightest pressure and it moves into position three.
Same on the left hand side but it won't stay in positions 2 or 3.
Anyone know if the "extendable bit" is upgradeable?