Lock fixture button broken - lcv 4.1.2 - and other issues

Right, so pretty standard for beta. Lock button worked in 4.1.1, doesnt anymore. Pre existing locked fixtures can be unlocked but no new fixture can be locked - simply bounces back to unlocked state.

Is it intentional that glass materials for use on fixtures are NOT affected by the new window transparency slider?

BeamNG phantom weight bug still occurs. All fixtures that can fall off, generate extra weight. I thought this was rebalanced? Still feels the same for me and im on all latest updates, tested on beam weight pad with vanilla fixtures. Car weighs in at 1013kg in auto but 1182kg in beam - each fixture adds 1-2kg upon tearing them off 1 by 1.