Hi Victor,
Pls. check via the t-code SWIA or SWI1 and check the status of the workflow you have created and then double click on the ID and look into the technical details of the workflow in the workflow log, and try to find out why the workflow status is in progress?
check the step history tab and also the container variables, and also check with the agent assignment whether it is missing or it has not picked the agent.
You can also check with the graphical display where the workflow status is in progress.
Hope it is helpful.
Reshma