Some pairs don't work in websocket depth supscribtion

Websocket
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Hi! I’m working on websocket connection. It works fine on a lot of pairs, such as BTCUSDT, BNBBTC and so on.
But! Today I tried to subscribe for BUSDVAI (1.035 | BUSDVAI | Binance Spot) and on every connection I just get i/o timeout. I also try to subscribe for something else simultaneously, for instance for BUSDVAI & BNBBTC in a single connection. It works, but I receive only BNBBTC updates

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I’m able to get depth data from stream without problem. You may like to wait a little bit more time when subscribed to the server since this symbol has low liquidity.