Hi, woodcat
I have tried importing chracter into blender through MPFB and after retargeting, the character's arms and legs are crossing, just as mentioned above.
When using .dae, the same weird movement appears.
when using fbx(saving characters made by human as fbx format) , the character stoop down.
Forgive me I didn't clarify the format at first as I didn't know that the format would be a key factor, maybe different formats will need to apply different transformation.
As for the format, firstly I chose to import into Blender through the MFPB, however I need to add some animation on these characters(through online website like mixamo), seems fbx would be a more popular format, so I chose fbx as the first choice and dae the complementary.
Just out of curiosity, what is the end goal, if not a secret? Will the characters be used in Blender or transferred to the game engine?
Yes, blender is the end goal, unity might be taken into consideration in the future, but recently would be blender.