Fail to transfer data from participant end to JATOS
Hi, our experiment recently encountered this message twice. It showed up after the participant finished the task. Never happened before. And in Jatos we did not receive the data, Jatos shows a duration of 2s (should be something around 10min) and status:
Illegal function call submitOrAppendResultData: component (ID 3) of study (ID 3) was never started.
I read another post about data transferring issue but our results are a lot smaller than theirs (< 500KB) so shouldn't be the file size problem.
Any idea what's the possible reason?