I found a work around that is acceptable for me, but not sure if it is OK for the others. Instead of selecting Safe Harbor/QBI, I select just only QBI. This allows me to e-file. Somehow, by selecting Safe Harbor/QBI, the QBI is unable to e-file. Turbo Tax needs to address this bug or provide a reasonable explanations. Now, I am OK with selecting only QBI because I did not see much differences in savings between Safe Harbor/QBI comparing to just QBI. So, you may want to verify at your end to see if it is acceptable.
