When you set the scale of a bone to -1, its world location breaks, rotating to random positions when you type 0 on the rotation number.
Image lock also breaks after setting bone scale to -1.
Reproduction steps:
create a bone
create a child bone to the first bone
attach an region/mesh to this bone
set bone scale to -1 (either x or y will happen)
set to world orientation
type 0(or as many 0s you want) on the rotation number
notice the bone rotating to random positions
turn on image lock
rotate the bone
notice that the image is still rotating together with the bone
reproduction rate 100%
OBS: does not happen if the scale of the bone is set as normal(to 1+)
Spine version: 4.23 Pro
system: windows 10
video showing the bug: Video on Google Drive
(too large to upload on the forum post)