Link to the page about Niagara problems
[LAUNCHING SESSION] - MAJOR Issue - General / Issues and Bug Reporting - Epic Developer Community Forums (unrealengine.com)
Here is the blueprint Niagara from posting on X
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The issue seems to be the Niagara VFXs. Double-check all your Niagara VFXs and ensure the “Effect Type” is set. Some of mine got cleared. Setting all to the default fixed the issue.
