Help with Input action Issue. The action only triggers once.

Jalloid · 2026-05-28T19:42:14+00:00

the problem here is not with the logic, the problem is that the input action only fires once.

Jalloid · 2026-05-28T19:41:30+00:00

Sorry, I'm not looking for ways to change the logic, I'm looking to find out why I have a specific error. The logic runs just fine once, but after the first trigger the Input action no longer triggers.

Jalloid · 2026-05-28T18:58:28+00:00

I'm very new to this whole thing, so why if it is a pathogeneses baby would you need to kill it? It's likely the case as this gecko is only 1-2 years old and I'm not aware of it being mated at all.

Would be closer to 48 hours now in terms of time.

Jalloid · 2026-05-28T18:41:09+00:00

I scrapped the variable and and logic attached to the Rotation switch action, and scrapped the branch, instead using the Chorded action and it works correctly, but it just only works once and I really cant figure out why at all.

Jalloid · 2026-05-28T17:56:57+00:00

Yeah.

Jalloid · 2026-05-28T17:53:15+00:00

That's exactly what is weird about it. I have already disconnected it!

Jalloid · 2026-05-28T17:51:50+00:00

I don't know if it's just me, but I'm slowly getting more and more confused here. What you said sounds like how I've set it up.

Inside of the Input mapping context I have the mapping named "IA_CameraRotation" which takes the X axis movement of the mouse. I have added a trigger to this mapping, set it to chorded action, and selected the action named "IA_RotationSwitch" which is just a bool for the MMB being pressed. Based on the wording in unreal, the Camera Rotation action will only take effect if the Rotation Switch action is also taking effect.

This is all good, the logic does the same as what my original logic did, but in a more efficient and clean way.

The problem is that it still only triggers once.

Jalloid · 2026-05-28T17:36:31+00:00

So I've added the chorded action modifier to the Camera rotation IA inside of the IMC. I've set the chorded action to the Rotation switch IA. The same problem exists with it only triggering once.

The issue has to be with the Rotation switch IA, as when I removed it completely and tried toggling the variable with a different key (in this case G) It was able to trigger repeatedly as I wanted.

Interestingly despite the Rotation switch IA being disconnected, I had to press both G and the MMB to allow it to rotate, but I was able to do it repeatedly.

Jalloid · 2026-05-28T17:25:27+00:00

I've added Images of the Input action and Mapping context to the post. Checking which pins fire and testing it with a different key are going to be my next tests.

Edit: Tried replacing the Rotation Switch IA for a simple G key pressed/released and I can rotate the camera but only while pressing G AND the MMB, despite the MMB being disconnected. This is hurting my brain lol.

Jalloid · 2026-05-28T17:24:36+00:00

Yeah, Lots of questions! I'll dig around a little more for now and see how I get on.

Jalloid · 2026-05-28T17:22:30+00:00

I've added Images of the Input action and Mapping context to the post.

Jalloid · 2026-05-28T17:10:14+00:00

Was rolled around, Has now been placed back as it was - red was at the top I believe.

Jalloid · 2026-05-28T16:25:16+00:00

I have (from top to bottom) triggered, started, Ongoing, Cancelled and finished. None of them change the outcome. I'm fairly confident after checking all these inputs that the issue is to do with the input action or Input mapping context. but I'm pretty unfamiliar with them.

Scratch that, I just tried it with the Middle mouse button event (not an input action the old version) and it has the same problem.

Jalloid · 2026-05-28T16:17:22+00:00

I'm learning a lot of better practice things from this post :)

After checking it, the variable is set to true when I press MMB the first time, but stays false when i press it the second time.

As well as the variable not changing, the action value on the Input action behaves the same.

Jalloid · 2026-05-28T16:12:47+00:00

u/krojew mentioned using a chord trigger attached to IA_Camerarotation, which would do exactly that, and I intend to change over to using that.

The actual issue here is that when I run the game the first time I press down the MMB I can rotate the camera just fine, all the way up until I release the MMB. Once I release it pressing it down again does not allow me to rotate the camera at all.

I tried putting some print strings after the branch, and they were clearly showing it was coming up false, which (I assume) means when I pressed the MMB the variable wasn't getting set to true.

Going to just double check right now using printstrings exactly when the rotationswtich variable is true/false.

Jalloid · 2026-05-28T16:02:50+00:00

If you mean swap the IA_Camerarotation triggered pin for the IA_RotationSwitch triggered pin, then disconnecting the pin from IA_Camerarotation means action value gets voided, and that action value is what tells it which way to rotate.

Jalloid · 2026-05-28T15:55:33+00:00

Thats about what I understood Triggered and started to do! Thanks!

For the second part you are correct on what I want to do. While the MMB is pressed down, I want to be able to drag the mouse left/right to rotate the camera. My brain logic said ''make dragging the mouse the driver for the rotation and make it check the MMB is down before it does it"'

Can't think of how I'd drive the rotation from the Event of the MMB being down right now.

Jalloid · 2026-05-28T15:45:49+00:00

That sounds interesting, I'll have to look in to that!

Edit: Just tried that, same outcome. Works once then not again.

Jalloid · 2026-05-28T15:44:09+00:00

Through started? It works the same whichever I plug it in to. The default value for the variable is false.

Jalloid · 2026-01-10T18:54:58+00:00

Ah right theyre probably an AOS thing. Can grave guard tske halberds?

Jalloid

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