Android: 7.1.2 (Nougat)
Termux version: 0.62

I've had my device's internal memory wiped when I updated to the latest release and ran "termux-setup-storage" in the terminal. To confirm, I created a few files and ran the command again which again wiped the phone's internal memory.

I've encountered this on my OnePlus 3t and a friend's Redmi Note 5, both running android 7.1.2 (Nougat).