Window snapping not working with two screens

Describe the bug
When connecting to external monitor window snapping overlaps with dock in the extended monitor. Windo snap feature doesn't understand that the dock is the extended monitor (not in the mac book) and overlaps it (screenshot attached)
Restarting bettertouchtool doesn't solve the problem
It solves in a random way closing windows or reseting the computer sometimes
Happens with all types of windows (chrome, finder, fantastical)

UPDATE; resizing dock seems to solve the problem but I think it is still a bug as this might not be the expected behavior

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
I have a macbook pro 13 2016 and a LG Ulta HD with USB C single connection


Device information:

  • Type of Mac: Macbook pro 13 2016
  • macOS version: Mojave 10.14
  • BetterTouchTool version: 2.652