Hello, Newbie here.
My EWC did the same thing more or less. I was timing and stopped the timers, pressed the reset and nothing! Pushers were stuck solid. The watch still kept time .The chrono function was toast! I took it to my AD and they sent it to JLC for me. It was gone FOREVER! First it went to U.S. JLC, they had to send it to Switzerland. After about 5 months it was returned to U.S. JLC where they do a second quality test. They rejected it back to Switzerland! I was boggled by this (as was the AD) They were able to find me another piece BNIB. Send it in but DON'T BE IN A HURRY!