How silly I am !!
There is no bug. It occurred that the two surveys I exported contained the text and some html for the matrix response. I did not pay attention to this, and because it occurred more than once, I thought it was a bug.
I had done this in the answer option:
Code:
<span style="font-size:13px">Very Happy</span><hr style="margin:0; margin-bottom:0.6em">5
I'm embarrassed, please, accept my apologies.
I would even like to edit that topic so as not to confuse the readers, but I'm not sure about the forum policy.
Thanks again!