Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
ISSUE SUMMARY:
I would like to add attachments to group announcements but it won't allow me to save the setting which allows this.
STEPS TO REPLICATE:
1 Log into the administrative back end of the website and access the jomsocial component.
2 Choose a group from the View Groups (City Employees)
3 Choose Allow group admin to share files and try to click save.
4 The setting is not saved.
5
RESULT
EXPECTED RESULT
BROWSER
Anyway you also can edit your group from frontend, login as super admin and you can edit all group paramaters there and its working, also I able to change the allow upload file on your group "City Employees"
regarding edit group on backend, seems you need to wait version 4.3 for fixing this.