Trying to Trim the face of a bridge abutment but can’t get it to work. Did the same on the other side of the bridge and it worked fine. Just can’t get it to work on this one. Need to subtract the Green block from the Red solid. Would be great to know why this is not working. this happens on the odd one from time to time.
I used Trim from Bool Tools 2 instead of the native Solid Tools.
Digging a little I see you’ve scaled the groups without first opening the groups for editing. It may be that has something to do with the Solid Tools failing. You could explode each group and remake it to ensure the scale is correct and then try trimming the one with the other.