RIA TAC UKTRA FS Feeding issues

I have a single stack version, using it with Wilson Combat mags. It is clean and I lubricated it with slip 2000. Yet feeding issue persist. It is definitely broken in, yet reliability is spotty, despite the fact that I am using solely FMJ rounds. Tried different brands. I have seen a few videos where it is said that 10mm is inherently not reliable. What are your experiences?