Thanks for answering!
I’m sad to hear you’ll not fix it earlier. Don’t you have any means of doing point releases/fix regressions on existing releases if they are broken? I don’t know when 5.5 will even be out but working in SketchUp 2018 for months severely affects my workflow as I cannot easily import models from 3d warehouse for example.
Or consider open sourcing the exporter so the community can fix it for ya 
/August