Hi,
I am facing very odd issue: I have a handsontable instance that has columns per year, and above it nested header.
Also, I have a list of checkboxes per year, so when I click on checkbox I can show/hide columns in table.
In chrome, it works perfect. In IE, when I click on checkbox, header is not nested anymore (there is on colspan attribute in html anymore), but content is not properly hidden (rows are visible).
Afterwards, an exception occurs with mesage Invalid argument, and table is not working anymore.
Before:
After: