Query in Dialog for some specific users just disappear!

Hi,

I'm using AX 2012 CU7 to create a Dialog with a query to filter Inventlocation

I extends RunBaseBatch and build a QueryRun and override method showQueryValues() to return true.

Everything looks fine until these days ,

some users (with AX administrators security) complain they can not see the query anymore.

But using my account login, I can see the query without problem.

I try to clear usage data, auc file, cache... it didn't work, Can anyone shed some light on how to solve it I would

be much appreciated!

F206TW