On demand isn’t working on my sky q box and states I need to upgrade

[cemap24]

I am trying to use on demand and it states I need to upgrade. 
I have sky signature and this should include  on demand 

[Daniel0210]

@cemap24 

Do you have the HD add on? If not please try changing the default download preference from HD to SD in
Main Menu > Settings > Setup > Preferences

If you do have the HD add on or the above does not fix the issue post again on this thread so we can potentially escalate your post to Sky. Sky will then try to refresh the viewing card which sometimes needs a couple of attempts. This link explains more: https://www.sky.com/help/articles/call-to-upgrade-downloading-on-demand#q-help-articles