"Allocator.Temp ... ManagedTempMemScope." and "ArgumentException" errors when entering Play mode after navigating Search Node Hierarchy window

Steps to reproduce:

1. Create a new 3D URP project
2. From the Package Manager, install "ECS" features packages (com.unity.feature.ecs)
3. In the Hierarchy, right-click > New Sub Scene > Empty Scene and save it
4. In the Hierarchy, under "Editor World" select the "New Sub Scene"
5. In the Inspector, right-click on Live Conversion Patcher and select "Open in Search Window..."
6. In the Search window, perform various operations - modify query blocks, navigate through saved searches (see attached video)
7. Close Search window
8. Enter Play mode
9. Observe the Console

Actual results: "Allocator.Temp allocations are only allowed on the main thread or job worker thread with an explicit ManagedTempMemScope." "Curl error 3: URL rejected: Error" and "ArgumentException: Could not allocate native memory. If this allocation was made from a managed thread outside of a job, you must use Allocator.Persistent or Allocator.TempJob." errors are thrown

Expected results: No errors

Reproducible with versions: 6000.5.6f1, 6000.6.0b6, 6000.7.0a3

Can’t test with versions: 6000.3.21f1 (different Entities hierarchy)

Tested on (OS): macOS 26.5, Ubuntu 24.04

Notes:

• Could not find the exact reproduction steps, but it seems that navigating in the Search window at least for a little while would consistently lead to the errors