WIP Opens with PointDeviation Panel Visible - Bug

Work In Progress (9.0.25357.12175, 2025-12-23)

V9 WIP opens with the PointDeviation panel visible IF it was visible when V9 WIP was last closed. It does not occur if V9 WIP was last closed without the PointDeviation panel visible.

To reproduce:
Start V9 WIP
Use PointDeviation and leave the panel visible.
Optional - Do something else in Rhino while leaving the PointDeviation panel visible
Close Rhino (no need to save)
Start V9 WIP and the PointDeviation panel will be visible. It disappears for a moment as the splash screen closes but then reappears.

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Hi David,

That is the same behavior in Rhino 8. The panel needs to be manually closed.

Rhino should not open with any artifacts from the last use. No other analysis panels behave similarly. I find it very hard to believe that is intended behavior.

This should go on the list to be fixed. Why the refusal to add it to the list?

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That is what i am trying to determine. At the moment this looks to be intended behavior (in 6,7,8,9) on initialization it opens the panel, which isn’t contextual to the command itself.

If it is intended behavior then it is at a minimum very unusual. This only occurs with the PointDeviation panel; not with any other panel. Why would this behavior be desired for PointDeviation but no other command?

It only occurs if the PointDeviation panel was visible when Rhino closed. And it is independent of whether Rhino is opened with an existing file or with a template file.

If it is intended behavior then why would it open only if Rhino was last closed with it open?

To me this indicates a mistake was made way back when, probably an omission or a typo. Either something is not cleaned up when Rhino is closed, or something is saved in the configuration which should not be saved.

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I logged it as a bug RH-91302 Point Deviation Panel is not contextual

the difference between this and other analysis panels is that it can be docked normally. I don’t see any harm in leaving it open. In fact, the long term goal is that analysis panels are not special cased like they are now.

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