Right Click bug with retainers

Ever since the expansion pack released, I have had issues when right clicking items in mine or my retainers inventory. This only occurs when using my retainers.

When I right click 1 of 3 things will happen:
1. The menu pops up normally.
2. The menu pops up for a split second and dissapears.
3. Nothing pops up.

This bug has been making life difficult when using retainers and I am hoping to see some sort of resolution for it. Or some ideas onn how to fix the problem.

It happened before on the release of 2.0 and It's happening again now on the release of 3.0. Don't know why. I have tried 3 different mice, One microsoft, One Mazer, One Logitec. Some wireless, some not. I've updated drivers. I've tried using direct x 11 and 9.