Formatting issue when going 'back'?

Hi all, bit of an odd one here.

On occasion, when I press ‘back’ to navigate back to the previous page, the formatting of some elements seems to get messed up.

Example below:

Normal formatting

After going back

This happens occasionally and I don’t know why. From what I can tell, it affects the font, padding and margins of text elements.

My default app font is the font that I use (mostly) throughout, so it’s not defaulting to that.

Has anyone experienced this before?

Thanks legends

Bad example to use as the font seems okay in this screenshot. But on other occasions it has changed the font too.