We have recently upgraded from NSX-v 6.3.3 to NSX-v 6.4.3. The upgrade went well so far, but after the upgrade we noticed that the list of logical switches was no longer loaded correctly.
Depending on how we sorted the list, the list was either empty and the error message “Internal server error has occurred” was displayed or it happened while scrolling. In any case we couldn’t use the list with the logical switches anymore. And unfortunately the error message is quite useless.
So we went through the logs of the NSX Manager and found what we were looking for in the vsm.log.