Hey,
For some reason the asset ProPixelizer which is a Visual addon causes playmaker to stop sending events.
https://assetstore.unity.com/packages/vfx/shaders/fullscreen-camera-effects/propixelizer-177877Playmaker will work however will not send any events on the latest version. Its a brand new project and fresh downloads for the store.
I honestly have no idea why would cause this.
*UPDATE* For anyone experiencing this I contacted the Dev of ProPixelizer and found out if you remove PackageImporter.cs and DomainReloader.cs Playmaker will work again. ProPixelizer doesnt need those scripts.