I am sure it is TT issue. I my case two 1099-R with the same amount came from different brokers for different payees ( myself and my wife). I think that when TT builds file to send to IRS they leave all fields in 1099-R records blank except for amounts. If not blanks but some other the same values. This is why they look as duplicates for IRS computer.
When I spoke to TT customer service I asked to speak to one of their technical people to check on the file they build for IRS. No one was available. I myself used to work for brokerage company before I retired and I am familiar with the ways brokers build files for IRS and other third parties.
