Hi Pharan!
I'm using 3.5.44 with Autokey enabled.
Issue can be duplicated immediately by creating a new animation. What I do is the following...:
- New anim
- In frame 0, select ALL bones and manually key rotation, translate and scale
- Do the same for frame 24
At this stage all bones show a standard bezier curve in frame 0.
- In frame 12, I rotate neck and head.
Those keys show a non-standard bezier curve (accelerated on start).
I can send the files to that email, but my models are NSFW... are you ok with that or maybe you can manage with only the .spine file? :p
I've reverted back to 3.5.43 and did all the steps again. It also happens with that version.
Could also be that this project got "tainted" in some way and now it doesn't matter the version which you open it with... Or that the issue goes back longer than I thought (being a little superstitious here, I admit). On that note I've downgraded Spine to 3.4.02 to test that but it wasn't able to open the project. π
New test...: I've opened another project from other game I was working on before I upgraded to 3.5.xx. That is: old file with old version of Spine (3.4.02).
And if I repeat those steps, I also get exactly the same results: bezier curves in frame 0 (standard) and 12 (fast on start).
Now I'm officially shocked. :o
Could be something stored on the program's preferences, I don't know...