Forward delete freezes in action - highly destructive bug!

Describe the bug
Randomly, on several occassions per day, after hitting the forward delete button (defined as fn+delete on macbook touch bar) the process of deletion won't stop, even though the button is no longer being touched.
If cursor is moved to some other part of the text, it will start deleting there. If it is moved to another tab or window, either of the same program or entirely distinct one, it will continue its destructive behaviour wherever text-editable. Hitting other keys on the keyboard or soft keys on the touch bar won't override this mad behaviour on those sad and highly disturbing occasions.

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
Touch bar » delete button with the following configuration: Item placement - stick to the right side of the bar, Repeat action while button is pressed - ON; repeat rate 0,04 and Delay until repeat 0,25 (everything else left unchecked)

Device information:

  • Type of Mac: MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)
  • macOS version: macOS High Sierra v. 10.13.5
  • BetterTouchTool version: 2.530 (865)

Workarounds
For those fortunate ones who have more windows open on such occassions, the only workaround is to click with the cursor to a different window, preferably the one which is uneditable or where losing the text is no big deal, and quit (not just pause but shut down entirely) the Better Touch Tool. Only then it is safe to get back to one's valuable draft.

Another, not recommended workaround is to hit the esc key - with the risk of losing everyting because if one does that while e.g. writing an email, they will most probably end up closing the draft without saving it » and thus loosing everything composed so far.

Hi, three years have passed and I am still having the same issues as described above. I love BTT but this bug makes it sometimes really destructive, can someone please take a look into this?