Super weird transmission Issue
 

Hi everyone! How you guys are having a great day! My 2009 P71 Crown Victoria is having a really weird transmission shifting issue. I noticed it last night when I was driving home from my parents house. The car starts and runs perfectly fine, however, when I put my shift selector in Drive, the car doesn’t move at all the engine revs but that’s it. The funny part is that if I manually select 1 or 2, they engage and hold perfectly fine. I drove the car in 2nd about half way to my apartment and once I stopped at a stop light I put it back in drive suddenly it started working again. This morning when I was driving to work the car shifted perfectly through 1 and 2 but as soon as it needed to shift to 3 it just neutrals out. After driving about half way to work I put the tranny but into Drive and it shifted through 3 and OD perfectly fine. I checked the fluid and it’s in the crosshatches and the car doesn’t make any weird noise at all. The only thing I recently did to it is drop the pan and replace the transmission filter. I have no idea what to even think about this issue any suggestions would be greatly appreciated :)

Do you remember replacing the sealing ring for the filter mtg?