I noticed that since the last release of VS5, my animations do not work anymore as with older versions. When I change scene and come back, the animations that were in progress are no longer played

Example: I am in the living room. I open a drawer, it opens (loop animation of 1 image with open drawer). Then when I look in the open drawer, I change scene (change drawer scene). Once I leave the stage and return to the living room, the animation is no longer played ... and so the image of the closed drawer is visible.
I could do it with conditions, but why without changing anything it does not work anymore (with the VS4 and the first VS5, it worked). I have so many scenes that if I have to change everything with the conditions, it will take me a lot of working hours.
Thank you very much