Mystery Red Mark Next To User Preset??

I am trying to delete a User Preset I created and everytime I attempt to delete it it freezes and crashes Resolve. I noticed that this preset has a red check mark next to it, I wonder if this is the reason I cannot delete it.

Means 'default transition'. Right click on another transition and select 'Set as standard transition'.

Thanks Steve, that's what it was. I was now able to delete it without Resolve crashing.

You're welcome. Resolve shouldn't have crashed, though. Maybe a warning that you can't delete the default transition would be nice