I’ve double checked to confirm your import is indeed still running. It didn’t cancel and is not stalled either.
We’re processing quite a few imports from Tumblr at the moment, which is causing a backlog of imports in our system. While it may look like your import failed, it’s just in line for processing, and luckily it’s still in the queue. Please allow this to run for the next 24 hours, and if it hasn’t completed by then, update us here.