Hey there Hakuen!
That's a shame you don't plan on fixing dot move compatibility, but oh well!
Anyways. Your sample project has an error fresh from download, no dot move involved. I've downloaded your project from your official page.
The error is shared in the screenshot above, hopefully it's an easy fix. I'd love to check out your sample project and see how you've got some plugins configured.
Viewing post in Sprites appearing diagonal as default, facing wrong directions.
You need to tell me exactly what you are doing to trigger this error on the sample project.
Because I just download it now and hit the playtest button, everything working fine, no error being triggered:
Give me more details. Did you try another map? Did you enabled/disabled any other plugin on the plugin manager? etc.