I'm working on a report in Designer.on an 8.3.6 gateway. A report I've been working on has suddenly stopped working in Report Design Preview. tab The Overview, Data and Design tabs are behaving correctly. The Preview tab just shows "Loading...". Rather strangely, the XML data appears if I click in its display area.
Recent changes include renaming the report (the name has spaces) and modifying the default values of a string parameter with another string.
Restarting Designer didn't fix it. Any other ideas?