[BUG] Unable to add/watch custom FT to Flow Wallet Extension

[JeffreyDoyle]

Describe the Bug

• There's been a regression in how Flow Wallet Extension supports adding custom FTs via the EIP-747 / wallet_watchAsset RPC method.

• In 2.9.0 this functionality works on dpin.world , but on 2.9.3 this functionality has stopped working.

Expected experience

• Selecting "Add DPIN to wallet" on dpin.world works as expected

Steps To Reproduce

1. Go to dpin.world
2. Select "Add DPIN to wallet"
3. Observe the wallet stall in it's loading state

Environment

v2.9.3

[Peppermint1020]

Tested on extension 2.9.5.
We can add DPIN as our custom FT. The process video is attached.

Screen.Recording.2025-09-22.at.11.35.13.am.mov

But if the balance is zero, it won't shown in evm token list on home page.