Binded event only firing the first time?

Development Programming & Scripting
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1

Hi all.

I’m having an issue and I can’t for the life of me figure it out.

When my player XP changes, it calls an event dispatcher in the XP blueprint component like so…

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image1928×1048 308 KB

In my widget which displays the XP, I bind to this dispatcher like so:

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image1796×807 169 KB

It fires the event on the first XPChanged, but whenever it dispatches again, the event doesn’t fire. I have checked that the widget doesn’t get destroyed, I have also checked that the blueprint does indeed get to the point where it dispatches the call by following the blueprint as I play.

What am I missing here? Something silly I’ve overlooked?

2

Hi @crEA-tEch

Well you mention silly, but that last image you are binding the same event to itself?
You need to have one thing trigger another

Binding Events | Blueprints Visual Scripting for Unreal Engine - Second Edition (packtpub.com)

3

Hi @High500

It is a different event, just with the same name. I’ve changed the name (below), but still hasn’t fixed it :face_with_raised_eyebrow:

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image1406×516 101 KB

4

ok that makes sense now, im surprised the name didnt cause a conflict tbh.

Ok have tried adding the bind to begin play? or is that not possible?

How are you triggering the event?

5

If you look at the first screenshot, it is called in a blueprint component.

It’s weird that the first call works, but then my subsequent calls do not get fired

6

Any chance your character changes (eg. death + respawn) ? If the widget is persistent (playercontroller) but the character is not, then you’ll have to rebind the event every time you change character.

7

The character never changes, although that is a good point to bring up. But the BPC never gets disconnected from the character as far as I can see. As I can see the XP going up in the editor, it just doesn’t pass to the bind in the UI widget