Normal game, no mods, version 1.5.48 - ships can be repeatedly bought cheaply from Marketplace and immediately after they are received to planetary system hangar or dock, can be sold expensively, for inadequate price even 10x higher than normal and process can be repeated many times, which generates big (nearly infinite) Dust income.

This bug is not permanent. It does matter on switching between solar systems, marketplace and other ship at dock. "Cell ship" is normally sold for about 363 Dust, but sometimes game displays possibility to sell it for 3334 Dust. When I click to other ships and back to "Cell", price is normalized to 363 Dust. After few clicks and switches to other systems, I can again sell ship for 3334 Dust.

es2 - economic bug.jpges2 - economic bug2.jpg

They definitely won't fix this, it's a longtime math bug that would require redoing a lot of the math behind the market