Issues and solutions when uploading java entity models from Blockbench (5.3.1)

A few issues can occur when trying to upload java entity models from Blockbench (5.3.1) into Mcreator.

These are some issues I ran into and how I resolved them:
 

[Note: Many of these issues can be fixed by updating Mcreator to the most recent version]

Problem:
Mcreator says that the model name is invalid when uploading even though the model name meets the requirements.
Possible Solution:
Blockbench exports with a comment at the top of the '.java' model file. Deleting this will do:

Problem:
Mcreator's 'Model animation definition wizard" screen appears but does not show options to change a model's animation.
Possible Solution:
Blockbench's recent update switched variable names, I got around this error by replacing these variable names in the '.java' model file:

RendererModel —> ModelRenderer

EntityModel —> ModelBase

Problem:
Mcreator's 'Model animation definition wizard" does not show the parts I want to animate. Or nothing at all.
Possible Solution:
In the Blockbench editor, you will need to branch your models into trees with the "Add group" button under "Outliner":
(There are a lot of materials on this elsewhere, but for the sake of convenience)