Crash after convert action

[onean]

Converting fire-raw.usdz…
Filtering out duplicate materials from fire-raw.obj…
Generating list of duplicates…
Correcting OBJ material references…
Writing OBJ file: fire-raw.obj
Writing MTL file: fire-raw.mtl…
Extracting textures…
Deleting Model I/O garbage…
Exported fire-raw.usdz to fire-raw.obj
Done.
then app crash，no other error message

[onean]

the issue has resolved，
let cgImage = texture.imageFromTexture()!.takeRetainedValue()
->
let cgImage = texture.imageFromTexture()!.takeUnretainedValue()