Header goes missing on view only reports

I'm having a problem with the header row going missing on an embedded version of several reports. Hitting refresh using the vertical ellipsis brings it back. Any ideas on why this happens?

Since this report is embedded on a web page, there isn't any way for a visitor to even know that the header is missing much less that he would need to click the ellipsis to bring it back.

The sheet can be refreshed to see the header but later, when visiting the webpage again, it will have disappeared again. It's clearly a bug.


Answers