There are a number of dependencies between the base containers (for example, "PHP 7.2 Apache2 Node14 Composer2" depends on the "PHP 7.2 Apache2" container), but those are not expressed in the github action flows. This can cause race issues because the dependent container starts building before the dependency is available. See for example https://github.com/OpenConext/OpenConext-BaseContainers/actions/runs/11322704037/attempts/1.
I'm not sure how to solve this, except for creating a single workflow with multiple stages.