A few days ago a serious bug was discovered in Cyberpunk 2077. Apparently, even a savings file could be completely destroyed if it became larger than 8MB, which mainly happens if you craft too much.
CD Projekt, which has had some problems juggling lately, should now have pulled out a patch that fixes that particular bug. Hotfix 1.06 is said to contain a solution, so now you should be able to craft the iron without worry.
Unfortunately, it is a small consolation if your savings files have already been affected. The patch will not fix them, but hopefully you do not have to encounter the same problem again. Hopefully.
Maybe this is the turnaround Cyberpunk 2077s shaky release. After all, they have already sold 13 million copies.