When I make a change in the database of my course it does not get reflected in the Android app. To get the app back in sync I will need to clear the cached data from the app. Typically, this type of data should be in some sort of cache storage. It seems that Memrise stores this information in the data storage so we need to “Clear data” from the app instead of “Clear cache”.
Anyway, since that will likely not change as it hasn’t since the beginning of Memrise time, I am forced to use “Clear data” and reconfigure the app. I set “Words per learning session” to 5, but when I learn words again the first time this value will change back to 7. It is quite annoying as it will leave words partially learned when either continuing on with 7 or changing back to 5.
TLDR: Either move cached data into the proper Android storage directory, or fix “Words per learning session” changing after the first run through. Ideally do both.