Project wont open (still in taskbar recent history)

Hi, I'm new.

I recently recorded a track for a podcast (one track, no plugins) "PBR ep 43"

I SWEAR I remember saving it and closing the program

Now the project won't open.

When I went to Logic later it opened the previous project I had been working on. "PBR ep 42"

The project still appears in the recent projects when I right click the application in the taskbar:

But it's not showing in the "Open Recent" from the File drop down menu:

I have just spent hours doing a Disk Drill in case I accidentally deleted it - nothing

I plugged in my hard drives to see if the project had saved somewhere strange - nothing

I was cleaning up my mac just before I noticed this so it's possible I deleted the project file but surely with such a recent deletion the disk drill would have unearthed it?

I'm out of ideas and, maybe it's as simple as 'You didn't actually save it and it's lost forever' or 'The file corrupted and theres nothing you can do'

But if someone knows what on earth is going on here I would be mighty grateful.

Thanks in advance.