I’m really frustrated about this. I want to delete unnecessary User Parameters created in Niagara, but no matter how many times I delete them, they keep coming back. Maybe the reference is kept because it’s still being used somewhere, but I have no way of knowing where.
I checked the parameters of dozens of modules of dozens of emitters dozens of times, but I couldn’t find the parameter I wanted to delete.
Why is it such a terrible specification? With Blueprints, you can quickly find variables anywhere.
How can I remove this annoying parameter?
Hi there @carta_oro!
You should be able so see how many times your variable is being used here:
Sadly, you’re right, there’s no direct way to search for where these parameters are being used like you can via Blueprints. But, you can check the “Show Parameter Reads/Writes” to help narrow down where they’re being used if you’re struggling to find them.
This is the first time I’ve heard of this feature. It seems very useful.
But this time the parameter was not used anywhere. After repeated attempts to delete it, I was finally able to delete it. So I think it’s probably a bug.
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Hi,
i am having the same error, deleting a variable does not persist, the variable shows up again after reopening the Niagara system or restarting the engine.
I think I may have figured out how this problem works. This is probably because the user parameters used in the collapsed option tabs are still preserved.
For example, there may be options such as Uniform or Curve for the scale of a particle. If you change the selection to Curve while using a parameter in Uniform, the parameter will remain as it is determined to be in use.
I recommend not worrying about this as it will waste time trying to resolve it. At least it won’t do any harm. Probably.
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