How to correctly subscribe/request and cache the aggregation bars?

[chungichien0923]

Backtesting

In backtesting, I follow the example_03 to subscribe bars

self.config.bar_type_1m = f"{self.instrument_id}-1-MINUTE-LAST-EXTERNAL"
self.config.bar_type_1d = f"{self.instrument_id}-1-DAY-LAST-INTERNAL@1-MINUTE-EXTERNAL"

# Subscribe to 1m bars
self.subscribe_bars(BarType.from_str(self.config.bar_type_1m))
# Subscribe to agg 1d bars
self.subscribe_bars(BarType.from_str(self.config.bar_type_1d))

When I use self.cache.bars(self.config.bar_type_1m), it works.
But when I use self.cache.bars(self.config.bar_type_1d), it get nothing, until I add .standard() to bar_type_1d self.cache.bars(self.config.bar_type_1d.standard())

Sandbox

In sandbox, I request and subscribe bars(through IB) using code like the following:

# Requesting historical bars
self.request_bars(
    bar_type=self.config.bar_type_1m,
    # Many optional parameters
    start=(datetime.now() - timedelta(days=self.enough_day_bar_num+1)).astimezone(pytz.UTC),
    end=None,              # datetime, optional
    callback=None,         # called with the request ID when the response has completed
    # update_catalog=True,   # bool, default False
    params=None,           # dict[str, Any], optional
)
# Requesting historical bars
self.request_bars(
    bar_type=self.config.bar_type_1d,
    # Many optional parameters
    start=(datetime.now() - timedelta(days=self.enough_day_bar_num+1)).astimezone(pytz.UTC),
    end=datetime.now().astimezone(pytz.timezone('America/New_York')).replace(hour=0, minute=0, second=0, microsecond=0).astimezone(pytz.UTC),
    callback=None,         # called with the request ID when the response has completed
    # update_catalog=True,   # bool, default False
    params=None,           # dict[str, Any], optional
)
# Subscribe to 1m bars
self.subscribe_bars(BarType.from_str(self.config.bar_type_1m))
# Subscribe to agg 1d bars
self.subscribe_bars(BarType.from_str(self.config.bar_type_1d))

Use self.cache.bars(self.config.bar_type_1d) , the 1d bars returned are not aggregating from 1m bars(which is what I want), but simply daily bars in IB(which is not what I want), seems like the aggregation doesn't work at all.
But use self.cache.bars(self.config.bar_type_1d.standard()) getting nothing.
(Besides, if I run more than 1 day, 1d bars cache won't get updated, though I expect it would.)

Also, it usually pops messege like "2025-03-18T18:30:51.188015000Z [WARN] SANDBOX-001.DataEngine: Bar QQQ.ISLAND-1-MINUTE-LAST-EXTERNAL,474.72,475.13,474.72,475.13,3210,1742322600000000000 was prior to last bar ts_init 1742322660000000000" when the requested bars loading, does it normal?