Custom welcome.html skipped, even if stat reports exists

[mira-miracoli]

This task checks, if a custom subdomain welcome.html is present and registers the result in custom_welcome

ansible-galaxy/tasks/static_subdomain_dirs.yml

Lines 51 to 54 in 8ec9239

	- name: Check if welcome.html is present in files
	ansible.builtin.stat:
	path: "{{ galaxy_themes_ansible_file_path }}/{{ subdomain.name }}/static/welcome.html"
	register: custom_welcome

However, it appears that the task despite that, skipped and the following task that checks for this variable is not executed:

ansible-galaxy/tasks/copy_static_files.yml

Lines 29 to 37 in 8ec9239

	- name: Copy custom welcome.html
	ansible.builtin.copy:
	src: "{{ item }}"
	dest: "{{ galaxy_themes_static_path }}/static-{{ subdomain.name }}/welcome.html/index.html"
	mode: '0644'
	owner: "{{ __galaxy_privsep_user_name }}"
	group: "{{ __galaxy_privsep_user_group }}"
	with_fileglob: "{{ galaxy_themes_ansible_file_path }}/{{ subdomain.name }}/static/welcome.html"
	when: custom_welcome.stat.exists

Could this maybe due to ansible behaviour, that ansible forgets about the registered result, when it executes tasks from an imported file?
I think that I have checked all other possible reasons and this seems to be the only one left, but maybe I am missing something.