Have you found a solution yet?
Sorry, it took me a few days before I tried to get the file, and by then, it was already gone from wetransfer apparently?
And then Medical Bullshit happened, so I figured I might as well ride it out before asking you to upload it again.
To answer your question:
I don't think there's a problem with older hammer versions? But I haven't really done much testing with anything before 4.X
Thanks, got it.
Pre-Source Hammer apparently does something... strange, which I hadn't seen before, and which fucks up the processing because Past Me was an idiot while working on the Classic Quake parser (which is what Valve 220 is, mostly)
I've got a fix in the works that'll go live... eventually (I want to combine it with some other changes I'm doing, since I don't have the bandwidth to do multiple rapid updates, sorry)
In the mean time, to unblock you, you can work around the problem by opening your .map file in Notepad++ and running Macro/Trim Trailing Space And Save (or doing it manually through Edit/Blank Operations/Trim Trailing Space) before opening it with HammUEr.