Why do booking blocks in the grid appear blank with no text on them?

Up to two different booking fields can be shown on booking blocks, and a further two fields on their associated tooltips.

You'll find these settings under MIDAS Admin Options → Manage MIDAS → Appearance → Booking Grid Settings.

If a field that is set to show on booking blocks is empty for any particular booking, its corresponding block in the booking grid will not contain any text for that field:

In addition, if a user's "Can view client info" permission is set to "No", and you've configured your MIDAS to show client/organization names on booking blocks, these blocks will appear blank to these particular users.

If this is not the behavior you desire, you could consider either:

• Changing what's shown on booking blocks to something other than client/organization (via MIDAS Admin Options → Manage MIDAS → Appearance → Booking Grid Settings → Show on Booking Blocks)
• Allow users to view client info (via MIDAS Admin Options → Manage Users & Permissions → [select user] → Can view client info)