LyX ⇒ Misplaced \noalign

[davidzentlermunro]

I'm trying to import a tex table using LyX (2.3.6.2) for Mac (OS Big Sur 11.6). Other colleagues can run the Lyx file fine but I get an error: Misplaced \noalign. From googling, this seems to be a generic bug in latest version of Lyx related to importing child tex tables but I can't see any proposed fixes. Note the table appears fine if I import it in latex doc.