I bought a license for unity (plus), opened my project (VR, Oculus SDK) and created a build without unity splash screen. (main goal was remove this splash from app) And this build was with unity splash screen.
Did the same for another project - everything is good. (Vuforia, android app).
Project settings the same for both projects. Different SDK (Vuforia and Oculus).
Needed solution for this problem.