Frequently asked questions for Blockchain

This is a collection of frequently asked questions about Blockchain on StackR. If you can't find your answer here, please reach out to support via the chat widget or email community@stackr.world.

How do I bridge OMI between Ethereum and Base?

Heads-up: if you're bridging only to cash out, you don't need to bridge — swap OMI → USDC/ETH on Base in the StackR wallet and send to your exchange instead. See "How do I cash out my OMI / tokens?".

For users who actually need to bridge between Ethereum L1 and Base:

Our native StackR bridge stopped working because our bridging provider Relay abruptly stopped the service. We apologize for the disruption.

The recommended path now is Superbridge with a third-party wallet (Metamask, Coinbase Wallet, Rabby, etc.):

1. Open https://superbridge.app/?fromChainId=1&toChainId=8453&tokenAddress=0xeD35af169aF46a02eE13b9d79Eb57d6D68C1749e — L1 → Base, OMI pre-selected. Reverse the chainIds for Base → L1.
2. Connect a third-party wallet holding the OMI you want to bridge.
3. Enter the amount and confirm.
4. L1 → Base: ~1–3 minutes.
5. Base → L1: this uses the native Base withdrawal via Superbridge which takes 7 days (Optimistic Rollup challenge window). There is no fast withdrawal option.

If your OMI is currently inside the StackR smart wallet and you need to move it to your third-party wallet first, use Send from the StackR wallet (Base address works for both wallets).

If a bridge transaction is stuck >2h, send us the transaction hash and we'll escalate.

My ETH L1 → Base L2 bridge is stuck

If your bridge has been pending less than 2 hours, please wait — congestion can slow it. Verify the transaction on https://etherscan.io (L1) or https://basescan.org (L2).

If pending more than 2 hours:

1. Send us the source transaction hash.
2. Confirm whether funds left the source wallet (etherscan.io shows "success").
3. We'll either trigger manual processing on our side (1-3 days) or guide you to claim via the Superbridge UI.

For new bridges, prefer https://superbridge.app — it's faster and the route is pre-selected.

My swap reverted — funds returned. What happened?

Reverted swaps usually mean one of:

1. Slippage too high — token price moved more than the slippage tolerance during the swap. Funds are returned automatically (minus gas).
2. Insufficient liquidity — for the pair you tried (especially Ethereum L1 swaps; we're working on a fix).
3. Provider error — our DEX aggregator (1inch) occasionally rejects.

If OMI was deducted and not returned, send us the transaction hash — we'll trigger a manual refund within a few days.

I can't swap USDC for Gems — what's wrong?

USDC → Gems failures are usually one of:

1. Daily spending cap hit — the cap resets at 00:00 UTC. If you're sure you haven't bought today, ping us and we'll check the cap state.
2. USDC balance on wrong chain — Gems purchase requires USDC on Base. If yours is on Ethereum L1, swap or bridge it first.
3. Provider hiccup — try again in 5 min.

If USDC was deducted but Gems didn't arrive, send us the tx hash; refund within a few days.

My Base L2 → ETH L1 bridge is stuck

L2 → L1 bridges via the official Base bridge take 7 days (Optimistic Rollup withdrawal period). This is by design, not a bug.

Superbridge (https://superbridge.app) is the recommended route for Base → L1 bridging. Note: this uses the native Base withdrawal which takes 7 days (Optimistic Rollup challenge window). There is no fast withdrawal option.

If you initiated via the native bridge and don't want to wait 7 days, you may be able to claim early via Superbridge's claim UI. Send us the transaction hash and we'll guide you.