As of now, the only way to avoid your claims being taken (despite this timer being 3 days) to be safe is every 2 days, you have to start replacing them. Building in them, harvesting in them, taming in them and other things that should initiate the server to recognize "HEY, THIS CREW WAS HERE AND HARVEST, BUILT ETC, MAYBE THEY'RE ACTIVE" resetting the upkeep timer. As of now, it is IMPOSSIBLE to hold your land on PVE. PVE will always be PVP for trolls with a trick up their sleeve but land claims should simply require that you are online to hold the claims. We had a nice area held that isn't even taking up 1/4 of an island and we are losing what little land we have because us being online, building, harvesting etc doesn't reset this upkeep timer? I've attempted contact on discord, twitter, discord again and now here. I don't think a matter like this needs to be kept in the quiet. Please, at least let the community understand you see this issue and a fix is being worked on. At this point, we're going to lose half our land because of it.