Cross Section Annotation Issue

Hello

I have a problem with the annotation of crosssections. I have created the corridor and the collection file for crosssection production in 2021 R1. Annotating in this version, I had a problem with slope annotations. Some annotations were appeared to be in a location where no feature is visible. Switching to the 2021 R2, the problem persists. Now I annotate features in a location that has not been presented either to the corridor or to the cross-section  I annotate.  I tried many options, including workspace change or preparing a new annotation group. No Succes till now.  Any similar experiences? Any idea or workflow to solve this situation?

Best