Can't start CW3 on Linux. "Player is already running"

[stdout]

I've been playing CW3 on Linux (Fedora 20) with no problems but today I can't start the program. I run it and get this:

$ ./CW3.x86_64
Set current directory to /home/dave/Downloads/CreeperWorld3
Found path: /home/dave/Downloads/CreeperWorld3/CW3.x86_64
Mono path[0] = '/home/dave/Downloads/CreeperWorld3/CW3_Data/Managed'
Mono path[1] = '/home/dave/Downloads/CreeperWorld3/CW3_Data/Mono'
Mono config path = '/home/dave/Downloads/CreeperWorld3/CW3_Data/Mono/etc'
$

In other words, right back to the prompt without any windows opening.

I haven't changed anything that I can think of, but I did reboot my desktop earlier today.

I ran strace against CW3 to see what might be happening right before it ends, and I see this near the end:

write(4, "Player is already running\n \n(Fil"..., 52) = 52

So is that why it's dying? Is there a lockfile or something that I can delete to get this working again? I'd appreciate any help.

[knucracker]

Not real sure... the only topic that comes up is this:
http://steamcommunity.com/app/234650/discussions/0/558754899774858118/

This is for a steam version of a Unity game, but the steam part likely doesn't matter.  Not sure if anything in that thread will help....

[stdout]

That thread wasn't terribly helpful, but the final post suggested merely logging out and logging back in and trying again.

Well, I did it and CW3 launched right up without problems. I dunno what was snagged but I'm glad to have CW3 back. I can stop panicking now. :)

Thanks for the reference to the thread.