I have been trying to model a shackle and I am having a problem with the fillet. Sometimes it will fillet and keep the circular pattern, and sometimes it will delete the circular pattern.
Fig. 1: Top fillet works R: 0.25
Fig. 2: Making bottom fillet
Fig. 3: Bottom fillet does not work.
Then I tried mirroring the part and had the same issue.
Figure 4: Selecting mirror properties.
Fig. 5: Mirror messed up.
One solution would be another way to model a shackle, but why would the fillet work this way. Is this a bug?
Solidworks File attached.