If the first reward of a quest is a currency (Coins, RP, etc.) and the second reward is an item, if the player has a full inventory, the first reward (coins) will be given, but not the second reward, aborting the claim. The player can keep spamming the "Claim Reward" button indefinitely to keep getting the currency reward.
If the first reward of a quest is a currency (Coins, RP, etc.) and the second reward is an item, if the player has a full inventory, the first reward (coins) will be given, but not the second reward, aborting the claim. The player can keep spamming the "Claim Reward" button indefinitely to keep getting the currency reward.