Resize the width of the list view that appears to be a large text box on the left to resolve the problem that the buttons appear truncated. 1-1. AR4.py 3xxx line: change width to 95 value 1-2. You can find this line bia finding default text starts with "##" displayed in List Copy .ano? file that covers initial setting, in excutable folder to source folder and paste overwrite. 2.1. I think setting file in source folder might some literial text problem about COM, COM2 port. Don't install Arduino IDE twice Don't install python multiple. I use python 3.9 and it works well. If tweeny board (might spelling slightly different) init button not work in second tab at AR4.exe then, check upload to board via Arduino IDE. Thank you. My father worked and works hard about AR4 Robot setting related problem. So I finally checked the issue and make well and report to you, community.