I’ve just imported two new lessons via the lingq chrome extension and neither blue nor yellow words were shown, even though I could see the list of my lingqs contained in the lesson.
I had to click on edit and then save and open to get going.
I just tried to import via the extension and everything looks normal for me, both blue and yellow word show up properly. Are you using new “LingQ Importer” extension or older “LingQ” extension?