[R99] Exception spawn on top of immovable sprite

System: Win7 64x

Repro:

1.Create a sprite that is immovable and place in middle of the screen.

2.Spawn another sprite on top.

3.Exception generated at line 1017 in sprite plug-in.

Include a capx and detail further please, I can't reproduce the issue.

The fact that you say "Create a sprite that is immovable" let me thinks that you're adding a physics behavior to the sprite, but it's not clear.

Also I guess the step 3 happens when you preview your project, not directly in the editor. Once more, unclear step.

Really do provide a capx and put more detailed steps should help.

Please include your .capx.