I hope I am able to describe this bug effectively.
A Favro form has text entry fields (single line or multi line). If the user filling out the form wants to edit something they have said (correct spelling, rephrase etc) there is a 25% chance that after pressing one key the cursor jumps to the end of the text field. Resulting in (for example) typing a word at the end of the block of text rather than where you selected.
This occurs whether you move the cursor with the mouse or by using directional keys.
It happens pretty reliably the first time you attempt to edit something. Then it won't happen again for a while. I haven't been able to discern what causes it.
I am using Google Chrome