Letter spacing does not export to PDF - but only sometimes

[Public_HealthObservatory]

I have two layouts, based on two separate map frames, in a project. I created one map, and then duplicated the layout and changed some of the elements to create the second map. The titles on each have a letter spacing of 10%. 

Upon export to PDF, one of the layouts preserved the 10% letter spacing, and the other ignored it. The only way I could get the letter spacing to work was to check 'output to image', but then I had to jack the image quality up to an unreasonable file size to make it look good, so this is not a solution. 

I'm guessing there's something in the one layout that is causing this that is not in the other layout? I can't figure out why it would only fail on one, but I'm not sure what to look for to fix it. Any advice appreciated!

[GregoryHanton]

Hey @Public_HealthObservatory , assuming you likely resolved this by now, but I had a similar issue - layout would export with letter spacing to image fine, but not to PDF. For me, it was the combination of font and font style I was trying to use. Pro didn't export with letter spacing using my organisation's defined brand font with a font style of Regular. I changed my font style to Medium for that label class and it exported fine. Hope that helps.

[Public_HealthObservatory]

Thank you so much for taking the time to reply @GregoryHanton ! I haven't actually revisited this, but if I run into it again (it seemed to only happen the one time?) I will give this a try. Appreciate it!