Is it normal to receive an 'under consideration' stamp for my non-O one-year visa renewal in Thailand?

It's common for applicants renewing their NON-O one-year visa based on marriage to receive an 'under consideration' stamp, even on subsequent applications. This stamp indicates that your request is being processed, and it's a standard part of the immigration procedure that allows officials time to review your application. Many expats have experienced this for several years, so it's not unusual.