Most probably, the issue happens because you didn’t create a replacing schema for the section page and didn’t add the code to this schema that check if these actions are enabled. Please find more information about it in the article by the link below (chapters 4-6):
As Norton answered, there's actually two places you need to add this. Once to the section page and once to the edit page for the section. An edit page can be seen in two different modes, (1) edit mode (where you're only displaying the edit page, this is what you're getting when you refresh the page while in edit mode) and (2) combined mode, this is actually the section page, where it displays the context of the section list you were on with the edit page on the side.
With this in mind, you need to add the action menu in both the edit page and the section page for it to appear in both modes.
