I updated to 3.8.6 recently and noticed that AUv3 folder permissions have been acting a bit strange.
Whenever Cubasis pushes a new update, it sometimes messes up the iOS/iPadOS sandbox permissions for “remote” or linked folders in the Files app. Because Fontstack relies on that external folder link to pull the soundfonts, Cubasis 3.8+ seems to be severing that connection when the project closes. When you reopen it, Fontstack panics because it lost the path, and just defaults to a local patch.
As a temporary workaround until Steinberg or 4Pockets patches this, I’ve just been manually copying the specific .sf2 or .sfz files I need for my current project directly into Fontstack’s local folder. It’s annoying and clutters up storage, but it stops the project from losing the right sounds when you reload.
It might be worth dropping a quick bug report in the 4Pockets Facebook group too—Paul (the developer) is usually very fast at looking into host-specific routing bugs like this!
there is a upgrade for fontstack, for this issue, but here still the same problem after upgrading fontstack.
Would be nice if someone at steinberg could have a look at this problem….