If you have a case going on that long and the issue is a vCenter crash, escalate to their manager and get it pushed to the next tier. There's no reason to wait that long unless they're doing research with engineering. GSS is probably the best chance of success you have here.
Did you happen to use/upgrade the Avamar backup?
If you already have Avamar, please check the below:
Indeed, this is exactly our situation. And I know this link, I found it ~2 weeks ago when I googled a suspect repeating entry "duplicate container view for Object" I found in the vpxd logs.
I opened a case at DELL-EMC, mentioning that link, and I'm now waiting for a bugfix.
Did you get any update from DELL-EMC, on the issue?
We have the same issue :-(