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Niagara timeline bug

There seems to be bug involving niagara emiter and system timelines. While timeline is playing and jumps back to beginning there seem to be some sort of input given to engine. It closes drop down menus, stops mouse inputs (like holding down RMB when moving around in viewport and actual player movement while playing in viewport) and clears/deselects value inputs. Found in project migrated from 4.21 to 4.22 but not sure if that matters.

Easy way to replicate: Create niagara system, let the timeline play with lenght near 0 and try any of above

Product Version: UE 4.22
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asked Apr 11 '19 at 04:54 PM in Bug Reports

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Vampireium
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avatar image Jeff A ♦♦ STAFF Apr 11 '19 at 07:10 PM

Hello,

We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://epicsupport.force.com/unrealengine/s/

Thanks

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I'm having the exact same issue and it wasn't a problem in the preview builds of 4.22. Hope this can be resolved soon as it makes Niagara extremely annoying to use. The only work around that I have found so far is to pause the simulation while I edit values and close any Niagara systems before I play test.

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answered Apr 21 '19 at 10:41 AM

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Katanalevy
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avatar image Vampireium Apr 23 '19 at 08:46 AM

Yeah i'm using same workaround. And support answered already that bug has been fixed for next build.

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