Well I was asking because there has not been any API change in the last month. Have you submitted a ticket on the matter? I think this one will need to be sent over to psoft
I will give this ticket to Tanmaya next time he is in shift and have him take a look then we will reply if any mroe info is needed and likely forward it over to psoft for a definitive answer. Things that are working are not supposed to just quit working.
Your IP is on the “allowed” API access list, have you requested this? If not it is likely the reason, becsue psoft made a new security measure in hsphere that requires an ip access list. I would think it is there since only one function is not working.