Losing work after save and close

Hello all,
I am really sad. I have worked a lot yesterday in my project. Today I opened the IFC file and surprise. Anything was saved. I've made a test, deleting walls and slabs just to check. Saved as and again the model is the same. I had moved these stairs to their positions many times and they still come to 0,0,0.
What am I doing wrong?

Comments

Sign In or Register to comment.