[BUG] PPSSPP can't save settings on Android 9

[olddos25]

Hello everyone, this is my first message and I created this account just to report a PPSSPP bug. See, I just got a new cellphone with Android 9, and for some reason my settings aren't saved. Whenever I get out of the settings menu I get the following: "Failed to save settings! Check permissions, or try restarting the device" (and yes, the storage perm is granted, and I tried restarting the device)
We were supposed to have gotten this over with a long time ago, guys!
Can it be fixed on a later release?
In case you ask, my phone is a Xiaomi Redmi Note 7. Just sayin'.