I’m trying to fix a particular combination of marks that occurs in Tai Dam language written in Lao script. In these cases, I want to move the maiEk down a bit.
Initially I had no script or language tags in my manual MKMK feature, and the GPOS adjustment wasn’t working, so I thought it worth trying putting language tags in there. But whichever way I tried with the tags, although the features compile ok, on export Glyphs gave me a double error:
With language BLT or LAO:
With language THA: