Hello @dale, earlier today i sent my full model to support in reference to other issue (BUG same section style different hatch on solids)
you can investigate the very same model for the behaviour i am reporting here. try to work in whatever layout i have in the file try to add dimensions etc, you will notice how geometry is disappearing in the detail views and refreshing once you double click into details and escape them. it is super annoying and should be fixed because the work is unsustainable this way!