Hello,
My son has not been able to access his worlds for a couple of months now. We have checked everything, but nothing helps.
The Minecraft is installed into the internal memory of Lenovo Tab M10 3rd Gen tablet.
The storage setting is “Application”. He only has nice worlds, total 1.9 MB. cleaned caches many times, and plenty of storage available.
I think setting the storage to external can fix this issue.