DMX not working

Hello, I am experiencing an issue with my sequence triggers. After I press a trigger die lighting sequence doesnt get started. The sequence also isnt working in unreal when i play the sequence. Previously, everything worked as expected, but now the fixtures do not react when adjusting parameters like Pan or Tilt inside a Level Sequence. Even in a newly created sequence, there is no movement. The Moving Head is placed in the level and assigned to a Fixture Patch from a DMX Library. It seems that the fixture is no longer responding to values coming from the Sequencer. Thank you.
   Tornado

Comments

Eifert@Aximmetry
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Hi,

I am not completely sure which sequencer you mean: the one in Unreal Editor, or Aximmetry’s Sequence Editor / Sequencer in the Flow Editor? 
Also, are these virtual DMX lights inside your Unreal scene? Does your project receive DMX from outside Unreal Editor or send DMX?

Anyway, I will assume they are DMX virtual lights in your Unreal scene, and the fixture stops responding when the Level Sequence is played directly in Unreal.

Start by investigating the Unreal DMX project settings first. Under Project Settings > Plugins > DMX, make sure Send DMX by default and Receive DMX by default are enabled. On the relevant Output Port, enable Input into Engine so the DMX output is fed back internally into Unreal. For editor-side testing, also enable All Fixture Patches receive DMX in Editor. These options affect whether DMX is transmitted, internally looped back, and received by fixture patches while testing in the editor. 

Double-check the fixture patch and component setup. The Moving Head’s fixture patch should still be assigned correctly, and if you are testing in the editor, it should still be allowed to Receive DMX in Editor. If a DMX component is involved, make sure it is still set to receive DMX from the assigned patch. Also, verify that the fixture patch is using the correct active mode, because Unreal documents that a patch with no valid active mode can end up with a channel span of 0. 

If Pan/Tilt are the only functions that fail, inspect the DMX Library section in the Level Sequence. Unreal allows individual fixture functions to be toggled per section. If those functions were disabled, they may stop outputting their animated values and instead use their default values.

Finally, test outside the Sequencer. Use the DMX Control Console to send values directly to the same patch, and monitor the result with the DMX Activity Monitor and Channel Monitor. Those tools are specifically useful for DMX debugging and for visualizing DMX input/output. If the fixture works from the Control Console but not from Sequencer, the patch itself is likely fine, and the problem is more likely in the Level Sequence track or section.

Warmest regards,