Don't see an option to backfill with TICK backfill, so most probably it's not set unless that's the default.
MT is set to consolidate tick data after 1 day.
There are quite a few high volume symbols, SPY, QQQ, AMZN, META, GOOG, AAPL, TSLA, AMD, NVDA but issue only happens with AAPL and TSLA. And why would switching away from the AAPL/TSLA be slow?