I am displaying a version of http://www.syssrc.com/solar/broken.shtml on our digital sign. It worked fine with an older Xibo install. I upgraded to 1.7.5 (client and server) and now the layout “gets stuck” when the old page (above) comes up in the timeline.
The web page includes an I-FRAME which points to a script which updates our current conventional and solar energy usage every 15 seconds.
I experimented and found that as long a the time the webpage is displayed is shorter than the meta-refresh time, there is no problem.
I changed the webpage to refresh on a cycle that is slower than the time we display the sign, and the problem is masked.