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Tsumino is now disallowing your script by redirecting it to this fourm post. http://www.tsumino.com/Forum/viewtopic.php?f=4&p=6077#p1472
Fixed in version 2.0.3.5b.
Working on taking steps to prevent further detection.
My response to the post in question can be found here.
Also: Be sure to manually check for a new version of TE if you're redirected again after updating to 2.0.3.5b.
I'll try to address any new means of detection as soon as I'm aware of them.