I discovered part of the problem.
KL++ isn't blocking a large enough ip range in the 38.x.x.x block.
Add these to your BannedIpRanges.txt if they're not there already:
messed up files:38.118.0.0-38.119.255.255
messed up files:206.62.0.0-206.62.255.255
messed up files:67.70.118.116-67.70.118.116
This isn't a 100% solution at all, but it should increase your odds of getting a good file slightly when used in conjunction with the above methods.
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