I'm using QGIS 3.14. I have two layers with labels in QGIS, set up to map units. In "rendering" section of label properties I have set up to show all labels for these layers.
I want to export these two layers to DXF, and I succeed partially - some labels are exported, and some not, irrelevant of the layers.
I use following export parameters: Symbol layer symbology, scale 1:1000, encoding CP1252; Export labels as MTEXT elements; Export features intersecting the current map extent. Everything else is turned off.
It is worth mentioning that ALL block elements for points are exported, but only some MTEXT elements.