# Fireblocks Sandbox not fetching latest block for Shasta TRON

**URL:** <https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657>\
**Category:** Developer Discussion\
**Tags:** help-center\
**Created:** [August 7, 2025, 3:49am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657 "2025-08-07T03:49:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Reno](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@Reno](https://community.fireblocks.com/u/Reno)\
**Post date:** [August 7, 2025, 3:49am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657/1 "2025-08-07T03:49:45Z")

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Hi Fireblocks Team,

I am facing an issue for fetching latest balance in TRON Shasta Network in Sandbox environment.  
Fetching latest balance for TRON in Fireblocks resulted :  
{  
id: ‘TRX\_TEST’,  
total: ‘49.8164’,  
balance: ‘49.8164’,  
lockedAmount: ‘0’,  
available: ‘49.8164’,  
pending: ‘0’,  
frozen: ‘0’,  
staked: ‘0’,  
blockHeight: ‘56821922’,  
blockHash: ‘00000000036308a2aed64ef39dcb109986d967b81a9406411ab23e7f00695b39’  
}

on chain the balance should be 30.74924 TRX and blockHeight to be [56850413](https://shasta.tronscan.org/#/block/56850413) for this wallet : TBBCfojXkHM4Hg43g6E9XCn5Np3NUsYQLW or Treasury\_Vault-1735233178997 (vault id 8).

Please advise if the same behavior is expected for production environment, and if so, how often it will fetch for latest block ?

Best,

Reno

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**Author:** ![Rajalakshmi](https://avatars.discourse-cdn.com/v4/letter/r/8baadc/32.png) [@Rajalakshmi](https://community.fireblocks.com/u/Rajalakshmi)\
**Post date:** [August 7, 2025, 7:25am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657/2 "2025-08-07T07:25:34Z")

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Hi Reno,

Thanks for reaching out to us.

The balance update will be reflected instantly when our internal service queries the blockchain. But I see a balance discrepancy for TRX\_TEST on vault ‘8Treasury\_Vault-1735233178997’. It’s fixed now.

Please refresh the balance on your console assets page. You should see 30.74924 TRX\_TEST as on the chain—[https://shasta.tronscan.org/#/address/TBBCfojXkHM4Hg43g6E9XCn5Np3NUsYQLW](https://shasta.tronscan.org/#/address/TBBCfojXkHM4Hg43g6E9XCn5Np3NUsYQLW).

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**Author:** ![Rajalakshmi](https://avatars.discourse-cdn.com/v4/letter/r/8baadc/32.png) [@Rajalakshmi](https://community.fireblocks.com/u/Rajalakshmi)\
**Post date:** [August 7, 2025, 9:55am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657/3 "2025-08-07T09:55:24Z")

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Hi Reno,

You may consider calling our API endpoint to [refresh the vault balance](https://developers.fireblocks.com/reference/updatevaultaccountassetbalance) before triggering the Get Balance endpoint to retrieve the current asset balance.

Also, I would like to share that our [webhook V2](https://developers.fireblocks.com/reference/webhooks-v2) is now live for the Sandbox environment. It includes the [vault\_account.asset.balance\_updated](https://developers.fireblocks.com/reference/wallet-webhooks#vault-account-asset-balance-updated) event, which triggers a notification whenever the asset balance of a vault account is updated.

Please let me know of any queries.

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**Author:** ![Reno](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@Reno](https://community.fireblocks.com/u/Reno)\
**Post date:** [August 7, 2025, 10:16am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-not-fetching-latest-block-for-shasta-tron/2657/4 "2025-08-07T10:16:54Z")

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Hi [Rajalakshmi](https://community.fireblocks.com/u/rajalakshmi), thanks for the solution.