Skander,
I can't see the whole conversion microflow, does the microflow return $initial?
Also, you can define custom error handling on the Create Variable action in the microflow. Right mouse on the action and select Set Error Handling. Select Custom Without Rollback.
Next, create a log Action in the microflow. Log the latest error message and stacktrace. Finally, drag an arrow from the yellow arrow on the Create Variable action to the Log action. This will make your log action the error handling path. Also, add an End event after the Log action.
Once thats done, you can run the microflow and check the console in Studio Pro to see if there are errors generated by the date conversion. If so, troubleshoot that. If not, post the results here for further ideas about how to determine what is causing this issue.
Mike
If the list of objects is empty, I don't think your microflow is being triggered at all. Did you check with a breakpoint in the conversion microflow?
I'd focus on nailing down why the list of objects is empty first, and take it from there.
If you're not sure you can also try mapping the list of objects without the Date-attribute, for example.
If I had to take a blind guess, maybe it's got something to do with case-sensitivity?