Hi,
We tried to upload offline maps as per the instructions provided in the agl website (https://docs.automotivelinux.org/docs/en/master/getting_started/reference/getting-started/troubleshooting.html ). We checked the implementation of the document for different image versions like halibut, guppy and flunky flounder on Raspberry pi target board , was working for flunky flounder only. Do provide the navigation application source used in the Flunky Flounder, expecting to hear from you soon.