Here's the official reply from NIHL team:

Nihilo was listed on CryptoBridge but when we did the coin swap CB could not list us back with same ticker. We announced and requested them to stop trading Nihilo after the fork but they didn't . Although, they announced it on their Twitter but they didn't stop the trading of old chain. When we asked them to relist new chain with same ticker they refused to do so.

So, every NIHL coin on CB is from old chain and nobody suports that blockchain anymore since the swap from 15 March.