Layer symbols are not displayed correctly, if you hover over the symbol icon (the crossed dot), Designer displays a pop-up that reads: "layer", whereas the layer is in fact a symbol. Also, the name of the symbol in the symbol studio and layers studio still reads "layer", instead of "symbol" as symbols would. Also note that if I delete all the layers, the symbol in the symbol studio will read group, as opposed to "symbol".
See video, should be self-explanatory.
2023-01-12 13-01-13.mp4