I have a simple list with one field I named ‘Recipient’. It is a name field that allows you to select other sharepoint users. The workflow has one action, send email that does a workflow lookup at the Recipient filed on the current item and returns the field as a semicolon delimited email address. When I create a new item and select myself as the recipient the email gets sent but if I select anyone else the workflow goes into suspend status with the following status:
I adjusted by workflow as you suggested.
Step 1 – Update field for approver (enter my name in field)
Step 2 – Email approver
Step 3 – Update text field for testing
Still did not send me an email and did not update the field in step 3. When I changed step 2 to email me directly (not the approver), it worked. I got the email and step 3 updated the test field.