Most likely caused by #213, as the BLEND_MODE_MASK is 0b011 rather than 0b111, because the 5 possible values for BlockRenderLayer {null, solid, cutout_mipped, cutout, trancluent} needs 3 bits rather than 2.

Yep, looks like I did a bad. Thank you for the report. Will fix quickly.

Test build for fix is available here: https://github.com/grondag/fabric/releases/download/fix-258-test/fabric-renderer-indigo-0.1.5+f8c32967.jar

Thanks!