Hi
can you share a link to an example of what you mean along with more details? If necessary share the project with my Cardiff account and let me know.
In the meantime do you see the same thing with the hotspot image page in our page types demonstrator e.g.
xot.xerte.org.uk/play_116#hotspotimage
I've just tested that on my various monitors including 4k and don't see what you describe.
Indeed I did some more tests before sending this and I'm guessing that what you mean is that the overall width of the page content and text is reduced when above a certain screen resolution is that correct? Is your project using the Flat:CESI theme and if so what happens if you change the theme to say XOT1 does it then work OK? If that is the case we might need to update something in the Flat: CESI theme.
However can you also export your project and import and test it on your test server which is 3.14x and does the same happen with that?
HTH
Ron