WorkingHours version: 2.13.13
OS + version: macOS Sequoia 15.7.2 (24G325)
Device model: MacBook Pro 16" (Intel), 2019
When Working Hours is on the 'Time Tracking' panel, press a key (e.g. 'W') so that the list of tasks filters down to nothing. Then press the 'delete' key a few times. After a second, Working Hours will display a message box that reads:
"WorkingHours encountered a non-recoverable error ('Object reference not set to an instance of an object.').
If the problem persist, please contact the developer. App will now terminate."