Please help us help you and fill where relevant:
Your LimeSurvey version:  3.18.0+190923
Own server or LimeSurvey hosting: Own server
Survey theme/template:
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We created a survey that we use while interviewing candidates, the survey is open for 30 to 50 minutes as we add details to the questions within (there are multiple questions that are answered in order throughout the process).  From time to time when we go to submit the form just clears the data and nothing is saved.  Additionally, the End Message will not appear which is how we know there has been an issue.

Is there a time-limit built into Lime that I am not aware?  If so how do I change?

Thanks,

E

You will probably need to raise the PHP session.gc_maxlifetime setting.

Alternatively, place the questions in a few groups. I believe the session lifetime is renewed as each group is submitted.