Coinbase support seems questionable

According to my Gain/Loss Report, I have a roughly $3300 loss from crypto on Coinbase last year.

 

First - I decided to go into Coinbase and download the CSV designated as being for TurboTax use.  I imported it into TurboTax.  The site told me it imported fine, and my tax due went UP by about $3000.  Considering I had a $3300 loss, this was obviously wrong.

 

Second - I tried to directly import from Coinbase by having TurboTax login to my Coinbase account and pull the data out.  It did so successfully.  My tax owed dropped about $300.  But MANY entries are marked with orange as NEED REVIEW.  Those entries are all lacking a Cost Basis.  I still feel like I am not getting credit for many losses on trades.  If the cost basis is showing $0 and it's a sale, that makes it look like I earned a nice return, when in reality it was a loss.

 

Not sure if this is all a Coinbase problem or a TurboTax problem but this has me questioning other imports I did from other sources.