Workaround is to make your summoned companion idle. The slot has to be empty, you can't just make your summoned companion idle by summoning something different.
Then re-summon your companion and you should be able to equip items to it again.
i couldnt figured out how to post a report of your setup so i am adding it here. The Companoins have gotten Really Aggressive and it could go as far as to say "Blood Thirst". i am fighting a mob here and instead of being with me. i see my companoin go half way acrossed the map to agro and attack another set of monsters. they was not doing anything, they was To far away to be a threat. Anything within a 50' (according to my companoin) is a threat and must die. it has become Very Annoying and Frustrating when you are trying to complete a task but "You are unable to do that at this time" message comes up because your Pet went to fight yet Another mob without you. i cant even use my companoin in say Chult because of this. i ended up changing to a Ioun Stone because i know IT isnt going to agro and fight mobs. it is very bad on the PS4 system and it been this way for the last 2 weeks. tyvm
Answers
Workaround is to make your summoned companion idle. The slot has to be empty, you can't just make your summoned companion idle by summoning something different.
Then re-summon your companion and you should be able to equip items to it again.
The Companoins have gotten Really Aggressive and it could go as far as to say "Blood Thirst". i am fighting a mob here and instead of being with me. i see my companoin go half way acrossed the map to agro and attack another set of monsters. they was not doing anything, they was To far away to be a threat. Anything within a 50' (according to my companoin) is a threat and must die. it has become Very Annoying and Frustrating when you are trying to complete a task but "You are unable to do that at this time" message comes up because your Pet went to fight yet Another mob without you. i cant even use my companoin in say Chult because of this. i ended up changing to a Ioun Stone because i know IT isnt going to agro and fight mobs. it is very bad on the PS4 system and it been this way for the last 2 weeks. tyvm