I can't really tell why the folder isn't there... Tried all the betas from 5th to 8th and tried reinstalling the app multiple times, but the problem persists. If I recall correctly, I also performed a clean flash and then restored a system backup (the first time I reinstalled beta 5 over the 6th) with no luck. The only thing I have not yet tried is installing Artstudio Pro just after a clean install but I will try that too since it I have to rollback to beta 5 again because of the gesture problem. Speaking of which, were you able to reproduce it? Is it something that app developers must adapt to or do we just have to wait for Apple to take care of it? Cannot comment on source's reliability, but I read on r/iOSBeta that this seems to be the expected behavior and that app developers need to disable this feature for it to not interfere with normal usage.