Access Is Denied message in Sage 200cloud


We've had reports of an error "Access Is Denied" from numerous clients within Sage 200cloud.  Common theme is that they are all running a version of Sage 200cloud.  Doesn't seem to be reported on versions prior to cloud.

For a period we even got the message on our test VMs but it inexplicably dried up and hasn't happened for a while.  However, customers continue to report it.

Normally, logging out of the program and back in gets around it.  Typically, but not exclusively, the error will occur following the attempted display of a list view.

It's an issue that has been causing us much frustration as to what the cause may be.  Does anyone else have any experiences to share re. this error?