As of 5 July 10:00 CDT, still losing gems when using the market. For now I won't be using the market till you say it is fixed. I know you posted an update saying it should be fixed late 4 July.
I confirm this issue. Just lost more gems earlier today. I am afraid to open my Market. The timing of these issues are not ideal as most people in US have more time to play this holiday weekend. Please return the lost gems soon. Thank you.