Not able to see Added system Under Systems

Hi HANA Experts,

I have an unusual issue.

I am not able  to see the systems under "Systems" tray in HANA studio. This is happening after a recent access issue in the Workspace folder.  After I resolved the issue , and gave a different workspace folder, when I opened the HANA studio, I could not see the systems that I had added earlier . Hence, I added the HANA systems that I was working on using the "Add Systems" option in HANA modeller perspective.

After I add the system, it connects to the system using my user id credentials (can see the same at the progress bar in bottom right corner) but does not show that the system is added in the Systems tray and the Content , Catalog folders below it.

Can you suggest what could be the issue here and how to resolve the same ?

I am using SPS08 and HANA studio version Rev 80 and HANA modeller perspective, tried the same with Rev 83 and / or using HANA admin perspective , but does not help.

Appreciate urgent help in this regard.

Thanks,

Suma