"Cycle~" produces Triangle, "Saw" produces Mixed Triangles
@andy Looks like you have a high number of samples in your calccount (samples per pixel) or a small buffer size. Try decreasing your calccount, increasing your bufsize, and/or enabling a trigger mode that is often helpful for high frequencies and a small calccount.

Hope this helps!
Oh @roman, LOL :)
Super thanks, Josh! I should have trusted my ears and troubleshooted the scope earlier.