Thai fonts problem with Photo app on iPad

[Mekokung]

Hi, I have problem with Thai vowels with ` ำ ‘ when I put the vowels above ` ำ ‘ it doesn’t place on above but it’s on same level of ำ.

Here the sample 

 

If you can see on the right is on Affinity Photo. The words which doesn’t place above ำ. And the left side is the correct form which should be place on above.

I used Noto Serif Thai created by Google Fonts. This font is works on other Thai vowels only this word that has problem. And I checked with some fonts from Google Fonts like Itim, Sarabun and Bai Jamjuree it has same problem. 

FYI. 

Affinity Photo version 1.10.5.280

Device: iPad Air gen 3

OS: iPadOS 15.6.1

[Dan C]

Hi @Mekokung,

Welcome to the Affinity Forums

Thanks for your report and I'm sorry to see you're having trouble!

I can confirm this is a known issue, which is logged with our development team as a bug - so I will be sure to 'bump' this with the team now.

As I understand it, this issue occurs due to the type of 'table' that Thai fonts use, and Affinity doesn't currently fully support these tables, so I do not believe there is a workaround for this at this time, my sincerest apologies.