SWQL Studio "don't know how to handle element properties"

Just this week, I'm encountering this error when opening SWQL studio:

"don't know how to handle element properties"

The tree-view wont expand or show any schema. I type something into the search and it hangs up.

then it throws up a load of .Net errors

This is the first time this week I've encountered this issue. Strangely enough, we have completely separate enterprise application experiencing the same errors.

  • policy?
  • security
  • windows updates?

Of course, i'd be concerned this is affecting other aspects of the Orion platform as well.

Any ideas?