Seeing that dooglus also posted a file for every 10,000 blocks, I counted up to
https://s3.amazonaws.com/dooglus/bootstrap-199.dat is blocks 1,990,000 through 1,999,999
which is where my problem was happening so i renamed bootstrap-199.dat to bootstrap.dat, ran it and it imported those blocks just fine. Once it was done I reinserted the full bootstrap.dat file and opened clam wallet again and it was importing blocks again for a while, but I ran into the same problem so I just downloaded the next few files and appended them, it is easy enough
Did you get your node fully synced now?
I've uploaded 34 files, each with 100k blocks in them [
here].
I'd be interested to hear whether your client is able to import files of that size, or whether they're too big like when you tried with the whole bootstrap.dat file in one go.