Trust wallet just removed Auto-Change Address for BCH and advise you to use a different wallet.

In the latest update, Trust wallet removed the change of addresses that preserves some user privacy for

• Bitcoin (BTC)
• Bitcoin Cash (BCH)
• Litecoin (LTC)
• Dogecoin (DOGE)
• Ravencoin (RVN)
• Digibyte (DGB)
• Decred (DCR)
• Dash (DASH)
• Viacoin (VIA)
• Qtum (QTUM)
• Zcash (ZEC)
• Firo (FIRO)

https://community.trustwallet.com/t/removal-of-the-auto-change-address-feature/155623