Oh these are just too gorgeous, so beautifully done. I hope you are able to figure out what you lost? I have not even looked at beta yet and don't have a clue about it.
They are so interesting to look at. So sorry about the software- but isn't that what happens so often? What's supposed to be better ends up causing lots of headaches!
How curious. Hairbrushes, bottle brushes, scrub brushes growing in trees. I've not had the nerve and perhaps the desire to get the AI tools in the beta versions. The brush should still be on your computer. Hopefully you can add it back into the newer version.
@randystreat@bob65 thanks both, on investigation I found that the beta version was additional to the other version so now I have both and all my brushes etc! phew!