I have an update for the 2nd issue. Today I manually input all my 1099-Bs into the Turbo tax and I got the same problem so this should not be the import issue. It seems to me that if one account has too many 1099-Bs and the TurboTax just puts ONE 1099B into the 8949 form. I am not sure why is that and I never encountered this issue for the previous versions of the TurboTax.
Though this doesn't impact the final result but this still bothers me since the 8948 forms doesn't show all the information it has to. Not sure how to deal with this issue.
