snmp - ifAlias as LLD rule - no in/out ifOctets

[Koral]

Hello again.
I wanted to monitor couple of things including bandwidth on ports of switch.
Because I only need to monitor few ports (of 48-240 stack switches) I decided to use as LLD rule ifAlias (those "interesting" me ports have aliases so I can monitor only 10 ports instead of nasty 200).
Now the problem is:
I can't get zabbix to pull down ifInOctets or ifOutOctets.
There is no problem to get the operating or admin status of port, nominal bandwidth or is there a plug in the port. But IN/OUT Octets just turns red and says "No Such Object available on this agent at this OID"
When I do snmpwalk I get thoes values without a problem.
When I create an LLD rule based on ifName everything is also ok.
Any ideas what is wrong?
The indexes that zabbix is pooling throughout LLD in both cases are exactly the same.
Using ZBX 2.2.1 an SNMPv3

[Koral]

Update:
started working... sorry for "false alarm"
Deleted old, created completely new LLD rule on new switch with same parameters.
Still this is quite odd to me...
May it be that by modifying the "old" lld rule (in time of testing I was only changing items, not completely removing them) zabbix somewhere cached old values and did not "see" that the OID to query changed?

[Koral]

Nailed problem (somewhat):
when the LLD rule (based on ifAlias) is on host everything works.
When it is on template - fails: the items are created but you don't see them in latest data. When making the same but using ifDescr it is ok.
But still don't know why.
Tested on two zabbixes (2.2.0 & 2.2.1)

Can someone also check it?