[Build 1209] Previously exporting file now produces MakeOTF error on export

I’m getting this following MakeOTF error on build 1209:

The same file exports fine via 2.6 (1192) or 2.6.1 (1208), the Feature code hasn’t been touched.

This is a problem in be latest build. I fixed it and will upload a new version tomorrow.

Thank you!