There are a few issues being reported at the moment relating Crafting Survey Nodes .
- [PC] Missing Survey Nodes
An addon (Lost Treasure Maps) issue. Updating the Addon will fix this issue. - [PC] Missing Leather Nodes (Furrier Traps)
It has been reported that other players can see your nodes and loot them. - [XBOne / PS4] Missing Nodes
This issue appears to be a reappearance of the banker assistant exploit hotifix. I have no other information on this issue.