Proxy Bake Issues
#Scan Sources is disabled
Confirm a valid Planet Asset, Section, and Source World. Stop PIE and ensure another external worker does not own the operation. If an External Level Section is opened from a different Level, the editor can request a move to the required Level.
#CompletedWithWarnings
Inspect SourceOmissions on BakeData. Each record stores Reason, PassId, actor and component path, class, and detail.
Typical reasons include:
- Spline Mesh deformation
- Unsupported component class
- Cloth or deformable content
- Missing mesh or LOD
- Projection range exceeded
- Unsupported or sky material
- Nondeterministic dynamic source
- Unavailable saved PCG managed resource
For intentional exclusion, author an explicit source policy or NoBake tag. For missing visible content, convert it to a supported Static Mesh, Instance, or Landscape source.
#Bake is stale
Changes to Planet Asset structure, Section placement, Source World content, Source Material, quality, or visual-generation input can make the revision stale. Scan, recalculate the plan, bake again, and run Full Validate.
#External Bake Monitor does not open
The browser Monitor is optional and does not own the Bake. If its local service or system browser cannot open, External Bake continues; use the Editor status and Unreal log for progress. Do not copy or share a complete Monitor URL because it contains a local session token.
The direct Worker hosts the Monitor while the Bake is active. Its service ends when the Worker exits, so an existing tab may show Disconnected after completion. Restart or return to Unreal Editor and select Open External Bake Monitor to host the latest durable result again. The previous tab is not migrated automatically.
#Large package
Packages over 512 MiB warn; publication fails over 1 GiB. Split large indivisible sources and review partition, shard, and instance-aggregation output. The 128 MiB source-spool target is not the final uasset size.