Expected Behaviour
One should be able to select the word, or the UI should be refreshed, so the word could not be selected.
Actual Behaviour
When one chooses a certain number of letters, let's say 7.
Immediately after that, one changes into another number, let's say 14.
Selecting the word will crash the app.
Steps to reproduce
Launch Crossword on Android 8.0.0
Choose a certain number of letters, let's say 7.
Change the number of letters into another number, let's say 14.
Select any word at all.
Testing Environment
Device: Honor 8 Pro
Model number: DUK-L09
OS: Android 8.0.0
App Version: 1.06
Notes: App downloadable on F-droid
Recording of bug
