Recently I am running into some errors in the panel where when duplicating on my test interface it seems the duplication doesn’t run smoothly when the duplication have images, but the images are not being duplicated as well. Where after the duplication the panel is reporting an error Reporting “undefined array key 1” as well as the page being not accessable in normal means.
Inspecting the content file, it seems a file/image field has not been correctly emptied causing that error, where in the content file it says e.g.
CoverImage: - >
If I manually edit it, to resolve it - it will still always happen to the next.
Further investigation draw to the conclusion that maybe spyc was the problem, while being able to change the yaml parser to symfony this fixes that problem, about half of other content files will not output all fields anymore being not compatible or need some sort of adjustment.
I am not sure wether or not spyc is already discontinued and whatsoever since I can find forum posts as early as 3.9.x saying the yaml parser will be replaced in another major release.
Is there any sort of safe migration or how do things stand with putting symfony as the default yaml parser? Being on 5.4. a few years later