I have a form with mostly text fields and checkboxes. Tabbing works fine as long as the document is unprotected.

When I "restrict editing" to only allow form filling, tabbing through text fields is still fine. When I try to tab from a text field into a group of checkboxes, the active field goes to one checkbox (not the first) and then won't tab any further.

I tried grouping, same thing happens. I tried legacy form controls, that didn't work at all.

Thank you for your help!