Omniverse USD: Releasing memory that isn't owned

Using the kit-extension-sample-asset-search as a base, I’ve got a memory error popping up:
Releasing memory that isn't owned by the sub-allocator texture streaming suballocator
This appears to occur due to loading thumbnail icons eating up memory and never releasing it. Is there some way to better figure out how to get the memory to release on the asset store thumbnails? Thanks.

Let me ask