Same problem with 1.2.6 here as well. These are the two errors that I'm getting. I looked for a debugging log in the TT folder but I didn't see one.
Faulting application timetrax.exe, version 1.2.0.6, faulting module kernel32.dll, version 5.1.2600.2180, fault address 0x0001eb33.
Faulting...