Clever bug triangle

[43торт]

algodoo 1.7.1
full mechanical scene, without scripts

this my scene
before

1)open
2)do with this scene anything (for example draw line, muve platform with drag tool)
3)save
4)open

after

how you see, triangle is lost, laser and fixate tools are moved (exactly platform isn't here)
BUT, tringle is not lost full
you cannot select it, but with other things it calculate number
on it you can put fixate tool
it's work, but cannot edit

please, help Algodoo !

[Livirus]

I don't understand your problem... can someone help you translate?

[Dakta]

Take the scene, open and modify (ex create another laser somewhere else), save, and reopen to find it messed up.