What zoom level are you viewing the page with?

Normal 100%, of course. But, I do use zoom on some other tabs occasionally, not sure if that might be the cause, since it never happened on other sites/tabs. Quick test now did not show anything unusual.

Interesting enough that hard reload and disabled caching does not help, only browser restart does the trick.

I know that it will be impossible to catch, find true cause and how it occurs, but had to post it here anyway.

Just to summarize the issue & make it clear:

1. page initially loads just fine inside tabbed browser
2. I continue to work/browse on other tabs, do stuff, forget on Piwik tab
3. when I get back to it after, I don't know, half an hour or so, I find it corrupted like above sometimes

Thanks
Closed.