Transmission

I just noticed I'm seeing dozens of unknown clients in one swarm, sets of "%FF" interspersed occasionally with a few extra alphanumerics and symbols. Here's a handful of examples:

u'%FF%FF|@|%FF
HA%FF%FF%FF%11%FFm
`0%FF?%FF%FF%FF`
%FFP%0B%FF$C/%FF
%FF%FF%FF%FF%FF%FFY%FF
%FF{%FF%FF%FF<%FF19_
]2Z%FF ...

I've started experiencing this problem lately too, apparently randomly. But after reading this thread I wonder if the problem is to due to a combination of this "feature" and the queue settings.

Simple case: preferences set to D/L with 2 active transfers and U/L with 1 active transfer. Start 2 ...

Got another crash on r9741. Does Transmission generate a message log file anywhere, or are they only displayed in that Message Log window while the program is running?

Process: Transmission [742]
Path: /Applications/Transmission.app/Contents/MacOS/Transmission
Identifier: org.m0k.transmission ...

I've been getting a few crashes since upgrading to 1.80b2 as well. Looks like the same error to me but here's the crash report just in case:
Process: Transmission [195]
Path: /Applications/Transmission.app/Contents/MacOS/Transmission
Identifier: org.m0k.transmission
Version: 1.76+ (9730)
Code Type ...