I remolded using original as template. I made it more rounded profile ,added an embossed Yeti and created a 10oz mug as well in same remix.

I took 1mm out of the bracket out so it is a tighter fit. I printed upright . did not modify connection point so you can still print original bracket

You need to lightly sand/file the bottom leading edges of the connection point (on mug holder) after print.
After light sand it fits perfectly into bracket. I tested this for both of my prints .

i used .6 nozzle on Flashforge CREATORPRO 2 PETG stock settings for temps

FlashForge

Creator Pro

No

No

standard

30%

ALL CREDIT TO ORIGINAL

last picture shows the original bracket size compared to original .