I am not sure if I am late answering your question but I had the same issue, the only resolution was to clear and start over my tax return. Once I did that, I was able to enter my 1099-G unemployment tax details. Hope this works for you too!
Once you start over fresh/new you will be able to upload the form or enter it manually.
** I wouldn't use the "Other 1099-G" Income Type. Once you clear and start over you should be able to enter your unemployment details under the "Unemployment Benefits" section.
