Tukohama's vanguard will in some cases not spawn more then one totem even if one is available.

They will spawn another totem if they change their target or if the single target moves outside the range of their previous totem. This led me to believe that they will always summon more then one totem if they had a increased maximum.

But most of the time the Vanguards will summon a(one)(singular) totem and then go in for some melee attacks.

Sadly poedb does not have datamined AI scripts anymore otherwise I could probably pinpoint what exactly is the issue.

This has been extensively tested on my current blast to the past character, "Sja_BlastPast". This character gives the minions a extra totem through necro aegis+tukohama's fortress. It's sad that two tukohama themed things does not synergise nicely :<

Potential fix, make them try to always summon totems if they have maximum totems available then go in for melee.