@kchow321 Hi
Sorry I put the arrow at the wrong location,
my option settings are as the same as yours both in 5 and 4.26.
and you’re right, seems like only imported as nurbs object can be re-tessellated in UE,
yesterday I just pasted the context I read before but I haven’t tested it yet…-.-
about the untrimmed solid? or poly-surface file, can you gimme a screenshot?
I tried to import some model and all works well.
or have you tried to export model to sat or other format UE supports?