Yes exploration data is always at risk until you have sold it to cartographics, explorers coming back from a long trip have been known to take extreme care until they have safely docked and sold the data.I not sure you meant this, but I note I lost all my hard-earned exploration data regarding a system I had explored and that's been tough to swallow.![]()
If it is just the one system then you can go back there and collect the data again, it is only after you have sold it that it becomes part of your permanent records.