Hi @PhoenixByrne,
For functional bold acquisitions, you need to specify the task entity label (task-) in your filename. So in your example, it would need to look something like sub-M2ID10040_ses-EmotionalReactivityAndRecovery_task-taskName_run-1_bold.nii.gz, where “taskName” is the name of your task. I would recommend checking out CogAtlas for choosing an appropriate name.
Additionally, in each functional bold json file, you’ll need to include this line: "TaskName": "taskName", where “taskName” is the name of your task. Do note that you don’t need the comma if this is the last line in your json file(s).
Hope this helps a bit.