When running a report with a dot-walked filter condition on a CMDB table (Table Per Partition extension model), large table structures can cause the addition of those fields to go slowly, potentially locking the browser. large table structures can cause the addition of those fields to go slowly, potentially locking the browser.
This issue is occurring with the Classic UI only.
Expected: Available fields will be updated to show all of the fields that extend from the cmdb_ci table. This should take a little time, but not lock the browser.
Actual: Browser locks. Eventually, it will return, but in a timeframe that is entirely unacceptable. Sometimes browser is hanging.
Use the Report Designer (new report UI) instead of the Report Builder UI ("Classic" report UI) for building the report. For more information, see Differences between Report Builder and Report Designer