My MC crashes with ITLT, without it everything is fine. It could still be a cross-mod problem, but I'll report it anyway. This is the crash-report.
Sorry for the inconvenience...

Could you please try this build:
https://dl.dropboxusercontent.com/u/45252097/itlt-1.8.9-0.0.9.jar

This one works... could you please upload it to curse? it seems like
there's no 1.8.9 version now, i think there was one once....

There was one, but I moved it into the archive due to the severity of this bug.
But i just uploaded a new version and it's in the approving queue now.