Depending on the setup, it is possible to hide rotation plans not belonging to the open client. This setup is usually done by system administrators in Global Settings:

Solution

If your Adonis application is set up this way, you should just switch the open client and then search for the rotation plan.

Open the vessel rotation plan which you are searching for, as a current client.

Then you should be able to see the plan.

If this works, it means, the setup was done as described above. It means each time you need to work with rotation, you need to ensure you choose the correct open client - the vessel in question or a vessel pool.