The game will not let me select a thrall in any crafting station to remove from the table. I either have to destroy the table and pick up the loot bag or place a lower tier thrall in the table and replace them that way. dose this on all servers that I currently play, my clan mate do not have this same bug they can select thralls as normal.
If my experience is the same, it is actually possible to move the thrall. It just doesn’t show the selection modification to the icon while doing so. Highlight the thrall with X, move the cursor to an open spot in the crafting table/bench, and press X again. The thrall should move, even though it doesn’t show highlighted. Let me know if this works for you.