After you file

I efiled and was accepted on 3/19 as well and getting "Still Being Processed" message.  I have such a simple tax return and just baffled as to why it's not done.  I haven't received a letter or request for information.  Are they even reviewing these?  This is holding up my stimulus payment also if it doesn't get processed how will they have my information? I didn't have to file in 2018.  Anybody find any feedback on this situation because I can't find anything.