I used be be able to export and restore workouts on my old phones (Sony Xperia XA1 and Xiaomi A2 Lite). However I cannot once I switch to my new phone (POCO X3 Pro). I was told there is an issue read and writing the backup.
I tried to place the xml file manually in the caynax/hiit folder and it was not readable as well.
I had reinstalled the app and granted all necessary permissions.