Editor didn't invite for a second review I recently reviewed a paper and recommended Major Revision. I provided a referee report with some detailed comments on what the revision should address. I can see from the system that the Editor gave a decision of Major Revision, the authors of the paper have been notified and they already submitted a revision four months ago. However, the Editor did not invite me as a referee in the second round. I have been refereeing for over seven years and this is the first time that I experienced such a situation. I have been obsessing that the Editor found my report incompetent or not useful. But, the overall recommendation was the same (Major Revision) and the same journal asked me to review other manuscripts in the same time frame. What do you think the reason could be?
There are always difficulties second-guessing from what others actions result from. The fact you did not get re-invited, is not strange in my experience (as reviewer and editor). First, I assume you do not know what the other (I assume the journal uses more than one reviewer) reviewer provided in a second review. It may have been minor revisions and the editor could make a decision to provide a major revisions verdict but go directly to accept if he/she thought the corrections were good enough. This is an editors prerogative. 

It is always possible that an editor chooses a different reviewer for the reason you mention but given that you have done many reviews before, I sincerely doubt this is the case or reason. Another possibility is that the editor felt someone with different expertise was needed for some aspect of the manuscript, perhaps based on comments by the second reviewer. But, you will never know the details of the story and I would not think twice about the event. The fact that you keep getting requests shows your expertise is in demand.