Server administrators can turn that off in StrangeWorlds.eco via "ShowPurchaseNotification" config variable. By default it is on, so players have the necessary transparent information to check for settlement shares being received.
we have just released Maintenance Update 11.1.9 with the following changes:
UI:
- Fixed: Icons for crafting recipes sometimes disappeared.
- Fixed: Icons for crafting recipes sometimes showed an identical smaller icon next to them.
- Fixed: Icons could become invisible in storages when moved very quickly.