Please Help Me with My Occasional Questions

 From:  friend (HELLO_MOI_FRIENDS)
9521.1 
Hello MoI friends,

I really enjoy using MoI and tell everyone interested in 3D to give it a try but I sometimes have issues and I hope the more experienced users here can take a few minutes of their time to help me out so we can all create beautiful designs.


My first issue(Please see attached images):

1. I create an L-shaped curve and Extrude. Fillet works.
2. I add a triangle shape using Snap, Extrude, and Boolean Union.
3. The fillet does not work.

I hope there is a way to fix this and thank you to anyone who provides a solution!
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