Turn on the "multifinder aware" bit. This should always have been on, but was was never a problem that it was off until CarbonLib 1.1 (which requires it, for some reason).
diff --git a/Mac/Resources/bundle.rsrc b/Mac/Resources/bundle.rsrc
index db89042..0ea2aa5 100644
--- a/Mac/Resources/bundle.rsrc
+++ b/Mac/Resources/bundle.rsrc
Binary files differ