I saw this forum posthttps://community.esri.com/thread/219055-launching-survey-123-with-a-url-from-the-workforce-field-ma... but we are seeing the issue with iOS as well.
Is this just a bug?
I am also running into the Extensions Disabled message when using a java script extension to perform spatial inheritance. All of the users are named users within our organization. The calculation fields in the form are accessing feature services hosted on our ArcGIS Online account. The feature services are also shared publicly. Is there something that can be causing this?
The only reason you should be seeing that is if the user is not logged in at the time the form is open- the restriction is that a user must be in the same organization as the form.
I have this same problem: I did a Survey that accesses some public FS (in my organization) and when I published I gave access to another user (in my organization), but the following problem is occurring: When I install the survey using the account I used to make this Survey (owner account), sign out of this owner account in the field app (after installing the survey) and sign in using the other account (which I shared my survey - by group) this Survey works well. In this case, Survey works well with this other account after this procedure.
However, if I try to install this Survey using another account directly (which I shared my Survey - by group), I get the message "Extensions disabled".
There was an issue that has been since resolved with a hotfix (3.5.176/3.5.177). I would encourage you to upgrade and redownload the form to see if this resolves the issue.