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Date/Time: Sun, 01 Mar 2026 20:27:31 +0000



Post From: Intraday Charts Becoming Invisible/Freezing When Switching Chartbooks – Version 2859

[2026-01-14 13:51:28]
Fabio - Posts: 147
Thank you for following up and for your willingness to investigate further.

We want to understand this better. So there are charts from a previous Chartbook still displaying? Or these charts belong to the Chartbook you switched to?

To clarify the behaviour I’m observing:

As soon as I switch to a different Chartbook, the two intraday charts in the bottom half of the screen continue to display data from the previous Chartbook.
Example: I was viewing NQ → I switch to ZC → the upper section correctly updates to ZC, but the bottom two charts remain stuck on NQ.
When I hover the mouse over either of those “stuck” bottom charts, they immediately disappear, leaving a completely black/empty area (as shown in the attached screenshot).
In the screenshot, you can see that the bottom section should contain two charts (a 3-minute chart on the bottom right and a volume chart on the bottom left), but nothing is visible.
Additionally, in the top-left corner of each black area, the platform displays a “calculating studies…” message, which suggests some kind of rendering or update process is attempting — but failing — to complete.


What happens when you left click one of those charts that you cannot see? Does it then become visible. After you left click on it, use the left and right arrow keys to scroll the chart and see if it then appears.

Regarding your question about interaction:

- Left-clicking on the invisible charts does nothing (no selection, no focus).
- Right-clicking, however, works normally: the context menu appears, I can place orders, use all my custom keyboard shortcuts, etc. This confirms there is still an underlying chart present. (I guess?)
- The Compact Tool Value (CTV) panel also continues to show live prices for those charts — albeit with clearly incorrect negative values (e.g. -534), which further indicates a rendering/data-sync failure rather than the chart being truly closed or removed.


Nevertheless, we will do our best to understand what the problem is and see what can be done.

I truly appreciate your efforts to resolve this. That said, I hope you can understand how disruptive this is during live trading: switching between instruments/markets mid-session only to return and find essential charts have vanished — with the only reliable workaround being to close and reload the entire Chartbook — makes real-time decision-making and order management extremely difficult and risky.
Please let me know if there are any additional logs, specific settings, or diagnostic steps I can provide to help narrow this down. I’m happy to assist in any way that can speed up identification of the root cause.
Thank you again for your attention to this matter.
Best regards,
Fabio
imageCharts issue.png / V - Attached On 2026-01-14 13:35:34 UTC - Size: 93.22 KB - 31 views