Text Profile inserted into a sketch will not conform to an arc.
Solution
Check to see if you have disabled the IntelliSketch options for various keypoint locates - particularly, Point On, Endpoint and Midpoint locate - on the Home tab while in Sketch mode.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: 1064
Product: SOLID_EDGE
Application: PROFILE/SKETCH
Version: V219.0
Function: GEOMETRY
Ref: 001-9893156