This same thing is happening to me too... I filed my 2019 return February 1 2020 and I am still waiting for my previous employer to actually send in the 2019 w2 he gave me so that my return can be processed... and it's Mid March 2021 now 🤦♀️ in my situation I know that my previous employer had a lot of issues with the irs and owes for several years... I'm currently trying to get in touch with a tax advocate to figure out if he has actually sent in anything and if what sent sends in doesn't match what I reported ill have to file an amended return 🤬 I'm a single of of two small children and really need the money last year and need it even more so now... I haven't received my stimulus checks either... the one time I was able to get through to the IRS I was told my IRS account has a freeze on it because of this mess... and of course this particular previous employer will not take my calls or respond to emails or the letter I sent him... and apparently he's not sent in whatever the IRS needs to process my return either.
