Quizzes with sequential navigation should not be downloadable and right now the web interface allows a teacher to enable it for offline use even if sequential navigation is forced.

In this issue for the app we have to implement a workaround to detect this case and avoid displaying the "download" icon in the app but this has to be fixed in LMS as well.

If navmethod === sequential (seq) the quiz can't be attempted offline

To reproduce:

• Create a new quiz
• Set Layout -> Navigation method to "Sequential)
• Make it available offline (Extra restrictions on attempts -> Allow quiz to be attempted offline -> Yes

Right now, even the quiz cannot be attempted offline, it is able to download, with the indicated change it should not be available to download.

Please notice that there is a related MDL issue linked that is about not allowing to indicate Yes in the option for offline quiz is the navigation method is sequential