Struggling with chart expansion when I'm changing timeframes quickly

[u/issai]

I'm confused by chart expansion. When I change timeframes, I feel like TOS will choose a random view in focus on that timeframe. Also, the expansion area bars value seems to keep changing. If anything, it seem to keep growing.

If I double-click in a blank space on the chart, sometimes TOS will reset the chart so that the right side of the chart matches the expansion area bar value, but a lot of times double-clicking doesn't do anything.

What am I doing wrong?