I have tried a few times to update to the latest version of the theme and I’m losing customizations to the footer specifically but also some custom .css is gone.
I created my own child theme and enqueued the styles and have never had a problem before.
Thank you very much Oliver!
Please understand that I do not provide full support for theme modifications, I can only provide tips – please read terms of service.
I can only suggest you to check your code. There should be no issue with theme updates. Depending on what theme version are you updating from, please check the theme changelogs to see the changes so you can check your code more precisely: https://github.com/webmandesign/receptar/releases