Trying to export without selected objects closes Blender

[FrancoTonutti]

If I try to export the basic scene from blender without selecting any objects by mistake, blender closes showing the following error in console:

Error: Not freed memory blocks: 8, total unfreed memory 0.001205 MB

When I select the cube and then export the following error appears in console. However the .egg file apparently works fine.

Objects for export: ['Cube']
WRITE main EGG to D:\Bibliotecas\Escritorio\untitled.egg
INFO: Used materials:  {'Material'}
Found Panda3D compatible Principled BSDF shader. Collecting PBR textures
[bpy.data.objects['Cube.001']]
Processing object <bpy_struct, Object("Cube.001")>
ERROR (bke.library): c:\b\win64_cmake_vs2017\win64_cmake_vs2017\blender.git\source\blender\blenkernel\intern\library.c:263 id_us_min: ID user decrement error: MAMaterial.001 (from '[Main]'): 0 <= 0
ERROR (bke.library): c:\b\win64_cmake_vs2017\win64_cmake_vs2017\blender.git\source\blender\blenkernel\intern\library.c:263 id_us_min: ID user decrement error: OBCube.001 (from '[Main]'): 0 <= 0

[kergalym]

Hi, sorry for delay.

Error: Not freed memory blocks: 8, total unfreed memory 0.001205 MB

I think, it's Blender memory handling issues. There are few bugrepots since 2015, last fresh one is https://developer.blender.org/T83389

ERROR (bke.library):

I didn't do test for model exporting on Windows yet because my main OS is Linux. But I have same errors which could be treated as warnings. (3d Models exporting in loop and there probably some plugin code does something not very suitable for Blender API)