After updating Lightroom CC and Photoshop "edit in Photoshop 2020" is not listed

Hi,
I just updated Lightroom CC and Photoshop to the 2020 version. When I want to send a photo from Lightroom to Photoshop for editing, I cannot choose Photoshop 2020. Only Photoshop 2019 is listed. I am working on a Mac, Mojave. I can open Lightroom and also Photoshop 2020 seperately, however the link to Photoshop 2020 seems missing because it still has Photoshop 2019 as default external editor.

See enclosed screenshot (Bewerken in is Dutch for "Edit in")