Everything looks fine in edit mode, but distorted in object mode

Support Modeling
1

Disabling modifier in viewport does the thing, but I want to animate it, which isn’t possible with the armature disabled (see this clip).

I look to some posts with the same issue:

…and tried this one:

  • Select Armature > Pose Mode > Pose > Clear Transform > Location (alt G), Rotation (alt R), Scale (alt S) (nothing’s working).

Download the file here.

2

Vertex weights and bone constraints are ruined. Regenerate the character or rig it manually.

By the way, if you are using an addon, always say so.

3

Yeah - looks like your bone weighting is pretty broken - with some verts assigned to the wrong bones, or, not assigned at all. You might want to delete your weighting and set it up again.