I am working with navionics to solve this issue. Bought first Hotmaps Platinum south chip in mid August, updated all 3 categories on chip before using it. When loaded onto Gen 3- 9, with latest software, map would not show photo overlay of land mass around lakes. After discussing with Navionics support, they had me send in screenshots and then asked that I remove the "data" file from charts folder and reinstall the chip to see if that corrected the issue. It did not, so they said the chip seems to be bad, and they sent me a new replacement chip in mid september. I installed the chip without updating it and the photo overlay function worked just fine. I then updated sonarcharts only on the chip(took 12 hours on my slowspeed internet), reinstalled it and still had photo overlay. I visited someone this past weekend with a true highspeed internet and updated the entire card, sonarchart, nautic..., and community edits, got home, reinstalled the card and found that I no longer had any photo overlay function. I recontacted Navionics, they had me again remove the "data" file and try the chip again on my unit. It still had no photo overlay function. I tried it on each of my units and got same result. I reported this to Navionics support and am waiting for next step from them. I am sure they will replace the card at the very least but they may have to fix some software or data on the cards or to update process before the issue is resolved? Is this a widespread problem or am I just lucky and got the only 2 chips that do not like gen-3 units after being updated? Seems like the problem is likely related to the nautical or community edits updates since I had the function before I updated these 2 sections on the second card. No way to tell on the first card since I updated it prior to using for the first time. Anybody else seeing this. I am sure Navionics would be interested to know, Some may have the issue and are just ignoring it if they do not care about the photo overlay function?