Unable to set vectorparameter value in a blueprint?

Development Programming & Scripting Blueprint
1

Hi.

I have a material collection.
I am trying to set the vector in a blueprint.

However when i do this i get an error at play stating SetVectorParameterValue called on “collectioname” with invalid parameterName ‘None’
This is likely due to a blueprint error.

Has anyone experienced this?
With the amount of stuff not working i am starting to wonder if my build of UE4 didnt somehow get completely mutilated by something.
Because when i look at tutorials i am following stuff identical to instructions, and the manual but still i end up with this

2

I tested the same thing in 4.4.3 and its working.
I think my 4.5 preview build is either broken or 4.5 preview in general is. Not sure

3

You need to post some screenshots of your BP.

4

Hi.

Epic staff was kind enough to answer this on the hub. They supplied TTP# 349533
I am to test in the stable final build of 4.5

Just waiting for the download :frowning:
But for interest sake.

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