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.
STEPS TO REPLICATE:
1 Login using credentials provided.
2 Try to post
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RESULT Nothing comes up.
EXPECTED RESULT It's supposed to show the post.
BROWSER ALL
what "switch accounts" purpose? seem that thing not compatible with jomsocial.
and I saw your site using jomsocial profile types extensions. it can be the issue from there.
that extensions always overrides/intercepts jomsocial functionality.
please try to turn off those things first (that 3rd party extensions)