Round Corners Filter not applying to some corners

You can see the two points that make up the finial (had to google that one!) of the /e aren’t rounding. Same is happening with the similar shape of the terminals of the /C.

Are these corners too acute/obtuse to get picked up? Of course I can manually round these, but it’s handy for now using a custom parameter to get quick rounding ‘for free’ whilst playing with values. Note: I get the same result with ‘Visual corrections’ both ticked and unticked.

Thanks in advance for any thoughts.

D.

Correct path directions first.

AH. Amazing. Thanks so much @mekkablue.