Checkbox styling gets lost with tables after rendering

I have a working template, where I add a (so far not bound) CHECKBOX into one column:

When I render the template, I get this:

**So the checkbox LOOK gets lost!**

Also, would be great to know how to set/bind the object in the template {{ item.Active }}...and keep the checkbox look.

No source files or tests are named. Start by tracing the template-rendering path and comparing the checkbox formatting before and after rendering; done means the checkbox appearance is preserved in table output and the supported way to bind {{ item.Active }} is established.

Written by the indexing model from the issue text.