When I try to edit a particular flow I get 'New designer can't be used for this flow yet' because it 'Uses a connection instead of a connection reference (solution flows only)'.
OK.
But then when I make an edit in the old designer and try to save, I get 'This flow contains unpublished draft changes which need to be edited in the new designer experience. The previously published version is shown. You can either switch to the new designer or remove the draft changes and continue working in the old designer.'
But I can't switch to the new designer experience because 'New designer can't be used..' etc..
So I can't edit it in either experience...?!
According to the summary page it IS using a Connection Reference rather than a connection, but that doesn't seem to matter.
I imported this flow from another environment using a Solution, so it is 'in an solution'. Is there any way to get it OUT of a solution so I can edit it in this environment? It's quite a complex beast to completely remake from scratch.