Underscores frequently appear invisible in konsole - changing the font size usually brings them back but there is no hard and fast solution. Observed in BoW using monospace font
https://bugs.kde.org/show_bug.cgi?id=335079
*** Bug 371688 has been marked as a duplicate of this bug. ***
If you can reproduce this w/ a new version reopen please
Ok - I've not seen this in the current version I'm using, happy to close
Thanks for the feedback.