Well I've had my Shield .40 for over a year now and never had an issue until today. Being on vacation from work I've been carrying ever day, as I pretty much always do when not at work, but living in central Florida the weather has been hot and muggy. This morning I went to drop the mag and noticed the mag release once pushed would not return to normal position and of course would not hold the magazine in place when reinserting. Not a big deal for I was able to correct with a little REM oil but I was wondering if this was a commend issue or just that I sweat like a pig in this Florida heat. 