Occasional 'Invalid Visualization' errors
Hi we have an issue which seems to come up from time to time for some users. They get a 'Invalid Visualization' error for the vizlib object, but other native QS objects load fine. A refresh of the page usually 'fixes' the problem for a while until it randomly comes back again sometimes weeks later.
This can happen with pretty much any VizLib object, from self service ones to custom report to finance.
An example of the type of error we get is attached.