Sure, it's still a bug that needs to be fixed.

Can you confirm this: The bug only happens when you click "Next" and then "Previous" and then "Next" again (going to the next question group then back then forward).

I supplied a fix. Please pull and test.

Perfect! It's working now!

Thank you once more

It seems that we're getting the same behaviour on other survey.

Limesurvey version: 2.65.6+170615


I'm sending the survey in attach

Thanks for reporting, will check right now.

I pushed a fix. Please pull and try again.

It seems to be working! Thank you again for your quick reply!

Do you have any default values for your first datetime question?

Caused by default answer {date('Y-m-d')}.

I think I've used 7 of June.

After the fix, you need to use this expression in default answer for it to work:

{date('Y-m-d H:i')}