in old chain I lose about 20k coin, import to the new wallet but it lost forever

Did you report it to devs ? there might be a way you can recover those.
yep but it show me, just 0.5 INT and now i still didn't receive anything.
Edit:Oh my god, I just received my INT coins after post. Thanks so much dev!
I have 4k coin (old wallet iz5K9xm6Zc4ckckVBppbQ4UBmiuhx8vfTDLvzxdU6GNjU3Sbek9UumU6hGHs6fj2oRi6x2QCVRLi2Vn
LTfCYZvYg242pDoZSJ)
bat i still didn't receive anything to new wallet (iz5WYU41xLSbZLFu9i3btj568vwndeZsGJohakLUHa7VDaePAd5VRjXGx4ykaAZkcNiUtJhgRAr7GVQ
9LnJH7VAT39UDPPxyC)
i ask dev about lost coin (import from old wallet to new wallet)