Hi all,

I’m running a number of surveys as part of a longitudinal study. Some of the surveys have a loop and merge block, where participants are being asked if they have been taking any medications, and if they click yes, they have to answer some additional questions. If they have more than one medication, they are taken through the loop again (and have the option to do this up to 20 times).

This loop and merge has undergone numerous rounds of testing prior to the survey going live, and has worked with absolutely no problem for well over 100 participants. However, over the last 3 weeks or so, I’ve had some participants getting in touch telling me they’re stuck in an eternal loop - irrespective of whether they put ‘yes’ or ‘no’ to final question in the loop.

Does anyone have any suggestions? Respondents are completing the survey via a personalised link. I’ve tested the links that participants who are having issues are using, and I am able to go through the loop and on to the next block of questions with absolutely no issue whatsoever - so I can’t correct the mistake! Has anyone had any experience of this? Could it be the browser they’re using?

Any help would be gratefully received