Issues with table operations

[guest]

Insert cell option

Click on "insert cell after/before" option, this results in new column creation on right hand side. One of its cell has the shifted value, rest of the cells are not usable. I am not able to have any content in them (attachment - unusable_cells)

Table layout when its not 100%

When table layout is not 100% and I continue to add more data, like list of points - the bullets merges with last column of the table. And its only visible when saved otherwise it appears to be okay.(attachment - list_table_merge)

Insert column

When I click on insert column, it does work but it inserts columns with very thin or invisible borders by default, particularly when there is big table with loads of content. At first I thought the button is not working at all until I spotted it in a smaller table.