Air bags deflate when I remove gladhands

How's everyone doin? Hopefully all is well....

I've run across this issue and can't seem to find the problem. My rig is a 2015 cascadia and has never done this.
As of recent, every time I remove the gladhands my air bags start to release air, well, my leveling valve does. However it's only when I remove the return (blue hose). Or when I hook up to a trailer and release the trailer brakes so the trailer tank can build pressure, the leveling valve also releases air.
The lever on the leveling valve is straight horizontal.
Is there a check valve somewhere? I'm stumped. If there has been a thread about this i apologize. I've done searched on Google and can't find anything that relates to my issue.
Any assistance would be greatly appreciated.

 

Yea. You are correct. I miss spoke. I did have a leaking chamber but I can't imagine that would cause my leveling valve to release air when I remove the blue gladhand and or when I hook up my gladhands and release trailer brakes.

 

They don't deflate as in exhaust all the air out, but almost like my leveling valve is at a 8° angle downward when it's sitting perfectly at a horizontal position. Leveling valve is about 6 month's old +/-.. It doesn't do it all the time but it just bothers me bc it's never done it before. Oh and tanks are normal/hold pressure. I did have a chamber go out and had to change my turbo actuator but no way that would cause my mysterious issue.