Try clearing your cache and cookies and then re-attempt the step and see if the issue still persists; you can also subsequently try using a different browser altogether. The 2 FAQ's below are for your reference:
**Mark the post that answers your question by clicking on "Mark as Best Answer"
Hi, this did not solve the problem. I also am finding a similar issue entering my 1099-SA. After entering, it does not appear in the table. I was able to import charitable giving via ItsDeductible but want to let you know that clearing cache and cookies did not work. I use Safari on a mac...could it be a compatibility issue?