Is there a way to figure out why some of the leads on a list I uploaded failed? It says "unknown error"

John_Danielson1
Level 3
I imported a list of leads. About 3000 of them imported fine, but there are 1100 that failed and I can't figure out why. 
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2 REPLIES 2
Anonymous
Not applicable
Are there any differences between 1100 records out of 3000 records that failed? 
Anonymous
Not applicable
It shouldn't be giving an unknown error. If you haven't already, please reach out to support. If you don't get a good answer, comment back and I can help.