a different APTOS issue...

Ok. So Aptos is a Microsoft cloud font that seems to only be available to Microsoft apps.
I think I'm having the same issue as you. I have a PDF that I needed to edit and when I tried to edit it popped up a tooltip saying that Aptos is not available or can't be edited. I fixed this by copying the aptos cloud font into the C:\windows\fonts folder. Voila! Now adobe can use and edit in this font. 
I found the cloud font on my PC by seaching the entire C: drive for "Aptos". It'll take a while, but eventually a folder called "Aptos" will pop up with a bunch of ttf files in it. I just copied all these files over to the windows fonts folder. When asked if you would like to replace the installed fonts, I just clicked "Yes". Works beautifully.
If you have trouble finding the fonts, let me know. I can send them in a zip file.

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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