I applied for ROC in January 2021 service center is MSC. The status is "ready to be scheduled for an interview" since November 2021. I have 24 months extension on my expired green card which is valid until February 23, 2023(feb next year). We are going for an overseas trip next month and coming back in November. Would this be problem on the way back. I'll still have 3 months of extension left when we will come back in November but i'm worried if it will cause any problems on the way back.