That's a really good question

After Altbinz doesn't work for this article, I've deleted the part49.rar and the part49.rar.1 file. There was already a par2 file in the folder with 38 blocks (exactly what I need).
When I start MultiPar to check the archive it told me that it needs 38 more blocks. But there was already 38 blocks available. So I downloaded some more blocks and after the repair works.
-> I think Altbinz had the same problem I had.
I don't think that my hardware is the problem. I have current 4 computer where AltBinz runs (2 accounts), and I have the problem on 3 machines. (i don't need the fourth often)
2 hours ago I had again this problem. I've done anything yet.
There is one file corrupt and it looks like altbinz repaired it already (part034.rar / part034.rar.1) There is one par2 file in the folder with 1 block.
Altbinz status on this file is
Repair failed. 31/32 blocks and 1 block from the par2 file.
And this is what MultiPar outputs
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