I have a relatively simple scene. A fairly low poly landscape with baked normal map, an armature with a walk cycle and a low poly humanoid mesh also with a normal and displace map. For some reason during the course of fine tuning everything the file size jumped from around 15mb to over 325mb. The only major change was I added sound, an mp3 about 9mb. I wonder if it is caching the animation within the blend file? Does blender store a new sequence every time an action gets edited? I’m confused.
Any ideas anyone, is it normal?