Does the September 1 check-in still apply for my NON-O Retirement Visa if I exit Thailand?

The original poster is seeking clarification on whether their first 3-month check-in with immigration, due on September 1, still applies after they left Thailand in July, even though they have a re-entry permit. Community responses confirm that the check-in requirement does still apply, and it's advisable to return to Thailand before the deadline. It's mentioned that in general, one can apply for a new yearly extension when they have 30-45 days left on their current extension, depending on the immigration office.