Active Report won't open after upgrading to 10.2.1 FP5

[Bek]

We've just upgraded our Dev environment to 10.2.1 FP5 and now can't open Active Reports

Error message:
Unable to get property 'getAttribute' of undefined or null reference mhtml:http://www...........................?b_action=rc&rsid=3640&f=MTY1MTMwOTA6ZHIHamxqc0N3ak04d3ZHan(it goes on like this for a while.)

Has anyone else had the same problem?

[Cognos KW]

Clear the Browser cache. :)

[Bek]

Thanks Kanul

We actually worked out that there was no data for that active report available in the environment we were testing in. Once the data was loaded, the issue disappeared

:)