Katalon Studio (Beta) Linux-GUI package

Hello,I tested the Katalon Studio beta version for Linux, and I have some problems.1- When I create a Test Case, I try to click add + Web UI Keyword in the Manual tab and the tool always stops working.2 - When I try to import .xls or .xlsx spreadsheets into Data Files created in Windows, they are not recognized. So I have to create new spreadsheets.I use Ubuntu 16.04I reserved memory for the Katalon (min 2GB, max 4GB)