Scene "bread crumbs" in the middle of the panels when opening old files #81161

New Issue

Dalai Felinto · 2020-09-25T12:21:03+02:00

Dalai Felinto commented

2020-09-25 12:21:03 +02:00

Blender Version
Broken: master (2.91 alpha) 1a64f97b9e
Worked: 2.90

Short description of error
Opening a 2.8 file in master (2.91) shows the "Scene" bread crumb in the middle of the panels.

Exact steps for others to reproduce the error
Open:

ui-layout.blend

This file is the layout from the archiviz eevee sample flie .

By moving any panel up/down the issue goes away.

**Blender Version** Broken: master (2.91 alpha) 1a64f97b9e12 Worked: 2.90 **Short description of error** Opening a 2.8 file in master (2.91) shows the "Scene" bread crumb in the middle of the panels. **Exact steps for others to reproduce the error** Open: [ui-layout.blend](https://archive.blender.org/developer/F8919401/ui-layout.blend) ![image.png](https://archive.blender.org/developer/F8919405/image.png) This file is the layout from the [archiviz eevee sample flie ](https://download.blender.org/demo/eevee/archiviz/archiviz.blend). By moving any panel up/down the issue goes away.

Dalai Felinto commented

2020-09-25 12:21:03 +02:00

Added subscriber: @dfelinto

blender-admin commented

2020-09-25 12:21:03 +02:00

#81227 was marked as duplicate of this issue

Dalai Felinto commented

2020-09-25 12:22:23 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Dalai Felinto commented

2020-09-25 12:22:23 +02:00

Added subscriber: @HooglyBoogly

Dalai Felinto commented

2020-09-25 12:22:23 +02:00

@HooglyBoogly most likely this is part of the search patch.

Hans Goudey self-assigned this 2020-09-25 15:49:16 +02:00

Hans Goudey commented

2020-09-25 15:49:16 +02:00

Interesting, not sure why this is happening. I'll take a look.

Hans Goudey commented

2020-09-25 18:46:55 +02:00

Very interesting! I just downloaded a fresh copy of 2.80, saved a file and opened it in master. It worked fine.
I also tried with the default startup files of 2.79 and 2.81. They worked fine.

What did cause the problem is saving the default startup file of 2.79, which did have this panel, then opening the file in 2.80 and rearranging some panels, then opening in master.
Because the Panel struct for currently unused panels is saved in files, the panel still existed in 2.80 even though it wasn't visible. So while rearranging panels it got moved to the bottom.
Then I used the same panel ID in 2.91, so the bad sortorder was read and the panel was placed in the middle.

In your case, I expect the file was created in an early version of 2.80 that still had the BUTTONS_PT_context panel.

An easy fix is to use a new ID name for the new version of this panel in 2.91. That won't solve this same situation in the future, but this is probably a very uncommon problem anyway.

Very interesting! I just downloaded a fresh copy of 2.80, saved a file and opened it in master. It worked fine. I also tried with the default startup files of 2.79 and 2.81. They worked fine. What *did* cause the problem is saving the default startup file of 2.79, which did have this panel, then opening the file in 2.80 and rearranging some panels, then opening in master. Because the `Panel` struct for currently unused panels is saved in files, the panel still existed in 2.80 even though it wasn't visible. So while rearranging panels it got moved to the bottom. Then I used the same panel ID in 2.91, so the bad sortorder was read and the panel was placed in the middle. In your case, I expect the file was created in an early version of 2.80 that still had the `BUTTONS_PT_context` panel. An easy fix is to use a new ID name for the new version of this panel in 2.91. That won't solve this same situation in the future, but this is probably a very uncommon problem anyway.

blender-admin commented

2020-09-25 18:51:13 +02:00

This issue was referenced by d951239e1d

This issue was referenced by d951239e1d9a903219a1d40d3704ea5696c452e5

Hans Goudey commented

2020-09-25 18:52:05 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Hans Goudey closed this issue

2020-09-25 18:52:05 +02:00

Aaron Carlisle commented

2020-09-27 13:51:46 +02:00

Added subscriber: @AFWS

Thomas Dinges added this to the 2.91 milestone 2023-02-08 16:20:22 +01:00

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Scene "bread crumbs" in the middle of the panels when opening old files #81161