Hi @charlie!
On a components page, I had an exported component. I had to make another version of it, so I duplicated it. Then I renamed it.
No matter what I did later, I was unable to export that component anymore. Apart from renaming, I tried clearing all caches, clearing the export button and saving, all kinds of stuff. I had to recreate the entire component from scratch to be able to export it.
I guess I had to uncheck the Export component checkbox, duplicate it and then re-check it, but this seems like a common thing users might do.
Thanks!