When I transferred my 2022 return (it transferred successfully), none of my information transferred over to my 2023 return. Am I doing something wrong? Or TT's issue?

Since you indicate that you're using TurboTax Online, see the TurboTax Help article How do I transfer last year's return into TurboTax Online? for guidance.

For desktop issues, see the TurboTax Help articles How do I troubleshoot copying info from a prior-year return in TurboTax Desktop? and Transfer last year's return to TurboTax Desktop for Windows for prior-year transfer guidance.

I know how to transfer the file (Tax Return 2022). I can locate it on my laptop when prompted by the 2023 TurboTax Desktop software. But after I transfer the file (it does say the transfer is successful), none of 2022 information appears on the 2023 return. I know because I have to type in my name, SS#, etc. instead of those fields already pre-filled with 2022 info. Please help!

Were you able to solve your issue? If not, please call TurboTax Customer service.  Here is a link:  Turbo Tax Customer Service