After updating Sketch to version 50 and syncing screens with Craft Sync (2.3.72) using Craft Manager v1.0.62 (102) some symbols are being exported properly and some not. Below you can see an example of layout structure previewed in Inspect Mode, one symbol (the "icon-checkmark") got properly expanded and there is an asset waiting for developers to grab there. Others - not so much. They are structured in the same way, I tried to delete the screen and re-uploading it, uploading a test page with just one symbol etc - same effect. Symbols are not getting exported properly.
I'm also getting the "exported, but there were some errors" toast from Craft Manager.