Freeze Trim Issue

Cubase 10.0.60.

There are 3 options for Freeze Trim settings in the Automation panel.
On my system, ‘Manually’ works as expected, but ‘On Pass End’ and ‘On Leaving Trim’ don’t appear to work.
In both cases the trim automation is NOT combined with the existing automation.

Can anyone confirm this behaviour?

No one? Fine.

This all works as expected in Cubase 8, so I’m going to assume this is another fabulous bug introduced by Steinberg
in a later version.