[Bug] Runtime data unavailable: `strategyV2.dataUnavailable: Crypto:BTC/USDT@binance:swap`

[chree188]

Describe the bug

The strategy fails at runtime during the handle_data phase with the
following error:

strategyV2.runtimeFailed: handle_data: strategyV2.dataUnavailable:
Crypto:BTC/USDT@binance:swap

The strategy loads and enters its runtime cycle normally, but the
handle_data callback cannot fetch market data for the Binance BTC/USDT
perpetual contract (swap). As a result, the runtime cycle aborts and the
strategy stops producing signals / placing orders.

Steps to reproduce

Create/deploy a strategy using Crypto:BTC/USDT@binance:swap → start it (paper or live) → observe handle_data throws strategyV2.dataUnavailable.

Expected behavior

handle_data should fetch historical and real-time data for Crypto:BTC/USDT@binance:swap so the strategy can run normally.

Deployment method

Docker Compose

Relevant logs

[brokermr810]

Please paste the strategy operation log here to facilitate our troubleshooting. Additionally, it is necessary to check whether the network environment is in a restricted area for Binance