5.7 -> 5.8 snmp bug ?

I have Mikrotik 5.7 in VMWare, working as hotspot. I getting current users from it with: 1.3.6.1.4.1.9.9.150.1.1.1.0

Now i updated to 5.8 and this OID dissapear and i`m now getting errors:

 Error: OID not increasing: SNMPv2-SMI::enterprises.14988.1.1.2.1.1.2.299
 >= SNMPv2-SMI::enterprises.14988.1.1.2.1.1.2.298



Error: OID not increasing: SNMPv2-SMI::mib-2.9999.1.1.6.4.1.4.10.252.130.0
 >= SNMPv2-SMI::mib-2.9999.1.1.6.4.1.4.10.252.128.1

So how to get current hotspot users with 1 OID ?
Is this a bug ?

please send supout.rif to support with reference to this thread.