6000.5.3f1: [Entities] MissingReferenceException is thrown in the Hierarchy window when entering Play mode with a scene that contains an ECS SubScene
Known issueCautionUUM-147355
6000.6.0a7: 2D Platformer Tutorial Template spawns more than 150 API warnings and outdated asset version alerts on initial creation
Known issueCautionUUM-144049
6000.6.0a7: [Universal 3D Sample] NullReferenceException is thrown when opening GardenScene in URP 17.3.0 sample
Known issueCautionUUM-145743
Editor crashes on "(Unity) WriteObjectToVector" when entering into the Play Mode
Asset ImportersKnown issueCautionUUM-112617
Fixed an issue where small artifact data types could be incorrectly garbage collected, leading to leaks and even corruption (UUM-146807) First seen in 6000.6.0b3. Fixed in 6000.6.0b5.
Asset PipelineKnown issueCautionUUM-146807
BatchPackedCullingViewID::GetEntityID generates the EntityID using the ulong handle directly instead of an int mask (UUM-146214) Fixed in 6000.6.0b5.
SRP CoreKnown issueCautionUUM-146214

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