I am using the custom capitalization to convert the artist 10cc to 10CC. What happens is 10cc got changed to $110CC when opening the tag editor
This happens only when the name starts with a number. I have tested it with a number in the middle and without a number
see attached pictures
Bug with minor priority
Fixed in Helium 12.0.3 (beta), https://implodedsoftware.wordpress.com/2016/09/16/helium-12-0-3-beta-now-available/
Thanks for reporting Erwin, we har reproduced the issue and will analyse it further.