Can't say why honestly. Worked on my phone, since we are indie devs we don't have enough resources to check many configurations.
Edit: Perhaps you didn't have enough space.
Still have over 4 gb free on external storage set as main storage, 2gb free on internal, HUAWEI MEDIAPAD T5 AGS2-W19
I had the problem too. The only way I could “fix” it if you want to call it that is to delete the game and just install the new version. Probably another way to save your progress but that’s the one I foun
