Prices look frozen or stale

All three cases are by design.

“Frozen” outside market hours. Tented switches to IB’s frozen data when the contract’s session is closed and back to live data when it opens.
SPXW, RUTW or VIX option prices stop changing from 09:25 to 09:30 ET. This is the pre-open hold. Between the extended and regular sessions IB’s quotes are only indicative, so prices, P&L, greeks and the risk graph keep the 09:25 quotes; the chain shows the current indicative quotes in grey. After the open each contract goes live on its first usable quote, and all of them within two minutes.
“Connection lost” and frozen numbers. While reconnecting, prices, P&L and greeks keep the values from when the connection dropped. When quotes stop for about 15 seconds with the market open, Tented reconnects up to five times, then dials every 5 seconds.