When opening a .sfz file, if a sample file does not exist, Polyphone silently ignores this error.
Steps to Reproduce
1. Edit a .sfz file and replace one or more of the sample file paths with a path to a file that doesn't exist.
2. Open the .sfz file in Polyphone.
In the table of samples:
- Include a row for every sample file referenced in the .sfz file, even if it's invalid for any reason (doesn't exist, can't be opened, bad file format, etc.).
- Add a new column named "Status", whose cells will contain either the string "ok", or an error message such as "file not found".
= Windows 10.0.18362.959