Further to my previous post I have found by removing the Siril folder along with the org.free-astro.Siril 19.18.12 folder the application works as expected. Unfortunately, everytime I open Siril it moves across the screen until such times it is lost and locked again. Opening the application in full screen mode appears to stop this from happening I’m pleased to say.
Operating system IMac M1 Sequoia 15.2
This needs to be passed on to the admin team but I haven’t been able to find their contact details.