When exporting imported .fit files as TCX MyTourBook just disable the buttons and grey out input fiels but nothing happes.
Exporting GPX works fine
I can not verify this behaviour, I've only a few fit files to test ist. Can you provide me a fit file that I can test it.
.fit file example
With the provided .fit files, I still cannot verify this problem.
Can you create a screenshot of the export dialog with the disabled buttons and attach it here.