Hello Laszlo,
We have seen this type of issues in our history, When a user reserves a conference room from the resource reservation database, the hourglass icon appears and then the reservation ends up not being processed.
Generally An hour glass is marked due to non completion of room/resource booking or still in processing to complete the booking.
1: This type of Issue can happen due to created entries schedules are not getting validated , so kindly run below 2 commands on Domino server console to validate the affected user in busytime.nsf database or clubusy.nsf(In case of cluster environment).
A: Tell sched validate User Name/OU/O
B: Follow immediately by "Tell Sched Check User Name/OU/O" to add the existing entries.
2: Sometimes RnR task is not responding correctly , Kindly restart the RnR task by running below command on Server console.
a: tell rnrmgr q ---> to quit the resource and reservation task.
b: load rnrmgr ----> to start the rnrmgr task.
3: In some cases we have observed , It was caused by users booking rooms from Local replica copy of the RnR database instead of server copy. It is not recommended to use Local copy of RnR database.
4: If RNR database is exist on cluster server , in this case also if rnrmgr task is not running on anyone server then it will not respond or you will not get the confirmation for room/resource booking.
In this case , make sure RnR task should run on all cluster mates including primary server.
5: Make sure the below Agents should be enabled with an Authorized ID (Admin ID).
A : Open Resource and reservation database in designer client.
B: Go to Code---> Agents----> Please check all below 4 agents
1: Update Blocker Documents Agent
2: RenameReservations and SendNotice Agent
3: Purge Documents Agent
4: Autoreminder Agent
Kindly check and perform above steps and see if it helps you to resolve your issue.
Note: If you find our answer is helpful then please accept the solution. It would be helpful for other users/customers as well.
Warm Regards
Hitesh G