Hi Neil,
I’m hoping to get this one sorted asap. Could I get you to do the following:
- Start Cantabile
- In Options -> Diagnostics, turn on Log File Write Through. Click the Open Settings Folder while you’re there.
- Restart Cantabile
- Reproduce the problem
- While it’s hung…
- Bring up Task Manager and locate Cantabile
- Note what Cantabile’s CPU usage is.
- Right click on Cantabile and choose “Create Dump File”
 
Sometimes, the Create Dump File command gives an error, in which case try this:
- 
Grab a copy of the ProcDump tool and extract it to somewhere convenient, eg Download folder 
- 
In Task Manager note Cantabile’s PID (If the PID column isn’t visible, View menu -> Select Columns, turn it on) 
- 
From a command prompt, run: C:\Users\brad\Downloads\>ProcDump 1234
(Replacing 1234 with Cantabile’s PID)
Then if you could send me:
- From Cantabile’s settings folder - log.txt, log-previous, settings.json
- A note about the CPU usage
- The Dump File created above.
Sorry for the complicate set of steps - but I’m gonna need some more clues to track this one down.