This has been happening to me for the last two years. It is still not fixed so I don't anticipate it will be fixed before tax day.
You need to message Airbnb customer service and ask them to send you a screenshot of your 2020 Earnings Summary. Keep asking the question until you get a rep who understands and will simply send you the picture (hopefully it will be on your first try.)
@Cooper-and-Greg0@Jordan568 Try going to your Transaction History, under Performance, Earnings.. then enter Jan, 2020 - Dec 2020 in the menu, then click on Earnings Summary tab. It just worked for me. Took about 45 seconds. Good luck!