Although I do read these forums stacking issues are really a mq2 core problem and should be reported to rswiders on the official macroquest2.com site or even better join the #macroquest irc channel it's where he hangs as "swiftymuse" he is usually fast with fixing these kind of things and if he can't do it I will look at it eventually... It's just the way we have set it up to share some of the load.
If you can't get it fixed within a reasonable amount of time pm me again about this and I'll look into it myself.