Hi Georgi, i currently use
Infragistics4.Win.UltraWinToolbars.v11.2
Infragistics.Win.UltraWinToolbars.UltraToolbarsManager, Infragistics4.Win.UltraWinToolbars.v11.2, Version=11.2.20112.2034''

greetings martin

Hello Martin,

Thanks for provided information. Looking at the attached screenshot, I think that you should have also Infragistics2.Win.UltraWinExplorerBar.v11.2 assembly.Could you please try to upgrade your project with the latest available service release for version  - 11.2.20122.2124. You could download it from our site: Infragistics.com -> Accounts -> My Keys and Downloads -> Service releases.

Please inform us about the results after your upgrade. Please do not hesitate to write us if you have any questions.

Regards

Hello Martin,

Have you been able to resolve your issue ? Did you try to install the latest service release ?
If you still have any concerns or questions I will be glad to help. If you need any additional assistance don’t hesitate to ask.

Regards

Hi Georgi, i have now updated to

Infragistics4.Win.UltraWinExplorerBar.v12.2, Version=12.2.20122.2010

i will see if its fixed.

greetings martin

OK. Thanks for your response. If you have any questions, feel free to write us.

Regards

Hello Martin,

Thanks for the screenshots. I made a lot of tests, but I`m not able to reproduce your issue. Please provide us steps or sample that reproduce this issue. It is very difficult to find the reasons for this behavior without exact steps or sample.

Let me know if you have any questions.

Regards

picture 2

Hi Georgi, here is that what i mean, picture in the executable it works, sometimes don't work.

Hi, thanks for the code and video. it seems that you have the same settings on the explorerbar as i.
i must remember that the bug not always. sometimes it works, next time it could be fault.

Here is the video file