Q: Editor Assigned status for the 3rd time after 2 months of under review and reviewer assigned twice. What does it mean?

Thank you for your question. Usually, the “Editor Assigned” status indicates that initial editorial screening is underway before reviewers are assigned. For manuscripts that require revisions, it is not uncommon for journals to get them checked by reviewers once again. In your case, it is possible that the revised manuscript was taken up by an editor/associate editor (Editor Assigned) who was to run a basic check on your paper again and find the relevant (or the same) reviewer(s) to check the revisions (Under Review). The status may have changed back to Editor Assigned either for a final editorial evaluation and decision or because of reviewer unavailability. You can consider finding out the typical duration for an editorial decision from your journal and sending a submission status inquiry to the journal once this period is over.

You will also find this resource helpful: Keep Calm And Wait: A Guide To Understanding Journal Statuses

Hope this helps. All the best for your submission!