User A has 10,000 USDX in his Exchange Wallet. He uses 5,000 USDX as collateral to open a 20x leveraged short BTC perpetual position. However, due to the price volatility of BTC, User A's position gets liquidated. In this case, with the isolated margin model, User A only loses the 5,000 USDX used as position collateral. The 5,000 USDX in his wallet remains unaffected.