I'm using Oilbrush on my M2 Air.
Initially, it let me choose the settings for removing the watermark, and the framing thing. But now when I use it, those sections are locked. I'm subscribed, but when I click restore purchases, it just gives me a big X. When I click on subscribe, it says I've already subscribed and to manage subscriptions in my purchased and subscribed apps settings, like that will help. Well, it doesn't. And the only other option is to go back, where it is still locked. All the important settings changes are still locked and even though it "recognises" that I'm a subscribed user, it also doesn't, forcing me to subscribe, ad nauseaum. In other words I can't use it on my M2 Air anymore like I used to be able to because of a sudden unexplained change. IT is HIGHLY annoying. It might still work on my iPhone, but that severely interupts my creative work flow. I am EXTREMELY unhappy about this. I have a feeling it will do the same, eventually, to other subscrubed users too.