Version 0.9.19; 3 files with change. do diff. select one file, use Commit button, write comment, works okay. Two files left, select both, use Commit button, get pop up, but now "Files to Commit" is blank. After closing MacHg and reopening the .mchg file, works as normal and shows two selected files in the "Files to Commit" column and commits as normal. Happens on three different .mchg fies and repos.
Issue #231 resolved