I'm using pApps platform in two distinct environments: on production server and at home.
Options at home:
check for updates: yes
update to beta platform releases: yes
Options in production environment:
update to beta platform releases: no
It was set several versions ago. For now both are 12.0.5 (not beta)
If there is available update for the apps (not the platform itself):
In production environment there is a window with list of updates as list with checkboxes.
At home: there is a simple list without checkboxes
Probably it is very minor issue - just FYI, probably it can be solved reinstalling the platform at home.