See
https://plnkr.co/edit/4HLyauwRrCWRo3pK
I have a multi page survey, and in the final page, I make it single page in order to provide a preview before submit. The problem is that if I have a checkbox choice "other", the value inserted seems to be lost, in fact pressing "submit" gives an error on the missing value.
I would like to add that in my survey (not provided) I also see some checkbox ticks missing when passing to single page, but I haven't been able to reproduce it in a smaller survey, not sure if it is connected in some way.
I just realized that now it also seems that if I click choice 1 or 2 in the Plunker example, the "other" choice is always selected. This did not happen before.