I’m trying to import to two different blogs, and both of them have been hanging for well over 24 hours at this point. I made the mistake of disconnecting and reconnecting early on, but it didn’t say it canceled; both still had the spinning “In progress” logo when I reconnected. Both still have that a couple days later, with no posts or drafts imported.
I’ve double checked to confirm your import is still queued. It isn’t stuck, it just hasn’t started yet. But please do reconnect to your Tumblr account if you’ve disconnected it, as that could be preventing it from starting.
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. At this point I’m not able to give an estimate on how long it might take to catch up with the backlog, though.