AME Beta Still Crashing

Following up on my complaint from months ago, AME beta still crashes mid-render.

I'm rendering hourlong recordings of a meeting, Sony FS5 MXF footage, very simple, no edits, just head/tail titles and credits added. Rendering from 2160p to 1080p in HEVC at 10Mbps

If I stack 2 or 3 of these, it will generally render one successfully, but the second one will stop midway. Task Manager shows the whole system at idle - no reading, writing or GPU. 

Pause>restart does nothing.

If I stop rendering program still responds.

If I duplicate the item and restart, it won't start rendering.

If I close the program, it freezes, shows the crash warnings and eventually it goes away after I cancel the "trying to recover your information" dialog.

Reopening, duplicating the project then starting the render is a 50/50 chance whether it will work or crash.

AME 26.0 (Build 44) Beta - Windows 11 Pro - nVidia 5080