I made some changes to the program and uploaded a new version (v1.2). Would you mind giving it a test and see whether it solves the issues you were having? I am new to localization so this is a learning experience for me as well
Also, while you're at it, could you also test whether the Bounding Box tool works for you? For now, you will have to enter size in meters with decimal point (1.5 for one-and-a-half meters).
Download link: https://bit.ly/2w6M9Cc
(I will investigate whether I can also support coma notation for the bounding box tool, but first want to make sure the current features work as intended).
Thank you Pieter. With your version 1.2. It works well on both decimal symbols (0.5 and 0,5)