Open JamesPedFoundry opened 11 months ago
Filed as internal issue #USD-8971
Hi @JamesPedFoundry, I was unable to repro this issue in either release or dev. Is this something you're still seeing, and if so, can you provide any more details about reproducing?
Description of Issue
Caches in UsdImaging are not correctly disconnected between UsdSkelRoot's and their bound Mesh prims.
This causes issues when unloading payloads which contain UsdSkel assets, or assets UsdSkel is bound to. Causes the error:
Used expired 'Mesh' prim
orERROR: Usdview encountered an error while rendering.Used expired 'Mesh' prim </HumanFemale_Group/HumanFemale/Body_sbdv> - UsdExpiredPrimAccessError thrown: -> Usd_ThrowExpiredPrimAccessError at [sic: path\to]\primData.cpp:283
The viewer then appears to crash and render black. We have been able to via more explicit loading/unloading steps to avoid the crashing to black, but its very unstable, and sometimes can cause the Mesh Prims to disappear and not return until restarted.
Steps to Reproduce
/root/HumanFemale_Group/HumanFemale
System Information (OS, Hardware)
Windows NVIDIA A2000 Linux Rocky 9 NVIDIA P2000 Linux CentOS 7.6 NVIDIA P2000
Package Versions
USD 23.05 USD 23.11
Build Flags
--usdview --usd-imaging --alembic --python