What steps will reproduce the problem? 1. Create new file 2. Drag-n-drop element "table" from Native UI 3. Add 13 columns there. The element will look not like table. If you delete 1 column, the element will show properly.

Hope, that you can fix it and the programm will allow to create tables with 20 or 25 columns.

Version 2.0.5, Linux Mint 17