Calendar not working properly on desktop

Sometimes the calendar does not show the tasks on desktop, although it works correctly on web and mobile.

Expected Behavior:
Tasks should be displayed consistently across all platforms, regardless of the Grid configuration.

Actual Behavior:
Tasks are not shown on the calendar in the desktop app for a specific Grid with many columns. However, it works correctly on the web and mobile apps. On some other Grids, the tasks do appear as expected.

Additional Notes:
Initially, I suspected the issue was due to a bad configuration or incorrect column selection. However, since the same setup worked fine on the web and mobile apps, that seemed unlikely. The issue only occurred in one Grid with many columns — others worked fine. It now seems the excessive or unused columns may have contributed to the problem, because I delete unused columns and now is working