@mark_m said:

What's going on in your 'Start' scene, which is activated? Are there things happening in there that are having a global effect?

 Good point, it could be something messing with Scene Activation that's in the background Scene. Yet another reason I'd like to actually try the file myself to see what's in there.

@markelinus

Based on the recording, while it visually looks like it's making changes to both Scenes, I believe it's actually a cosmetic failure and what's happening is that it is failing to draw the other Scene when you switch between them. I have only seen things like this when Isadora is unhappy about a piece of media that it will import just fine but has trouble dealing with when it attempts to play it. Usually, it's because the media was created with non-standard properties that Isadora doesn't know how to handle. I've only seen this a handful of times so we're still trying to isolate what it is about certain media files that causes these kinds of problems.

1. Could you please post the Isadora file here for me?
2. Could you please delete the media from your file (just select both video files in the Media View on the righthand side of the main application window and delete them) then try to switch between your Scenes to see what happens? (Feel free to do this in a copy of your file so that your original file remains unmodified.)

@markelinus

What's going on in your 'Start' scene, which is activated? 
Are there things happening in there that are having a global effect?

hey woland:  Try less brief, scusa:

Link: https://nextcloud.adk-bw.de/in...

The set is being used via osc-listeners-triggers send by qlab4 on one machine. This case is related to changes in one scene being transposed to all other scene, meaning while any change is being performed all scenes get hardly overridden immediately to my surprise. However further saved files get also overwritten, indicating kind higher order scripting being active wo sense. Any suggestion in global properties or else to check for proper usage..? Thx. 

@markelinus

Can you please give a more detailed description of the steps to cause the issue and perhaps screenshots of the different steps? Very brief, one-sentence summaries are not enough information for me to understand and diagnose an unknown issue like this.

@notdoc said:

NB: i have tried with/without Alpha. Also restarting after changing settings. I got a nagging feeling it's related, but I can't nail it. And why does Syphon Recorder have no problem with it? Grrr

I sent you a direct message yesterday. I'd like to set up a video call at some point so I can see this for myself and maybe try some things that might not be occurring to me because I'm trying to solve this theoretically from a distance rather than being able to futz with settings and such myself.

@woland:Current issue is all changes being processed in all scenes related to one file, cf. att. screen-rec..??..

@johnhorzen

I don't know why this only showed up as unread for me today, but adding multiple displays to the same Stage can be done with the little "+" button just above Stage Settings in Stage Setup. If you then drag the different displays around within the Stage, anywhere they overlap it should automatically handle the edge-blending for you.

Gif: https://jmp.sh/L3j7UYBL

If you are doing edge-blending, these User Actors of mine might also be useful for calculating how many pixels of overlap you want to have (generally around a 20% overlap is ideal): 

blend-resolution-calculator.iua4

blend-resolution-calculator-2-display.iua4

blend-resolution-calculator-h-and-v.iua4 

This tutorial of mine on how to put User Actors into your Global User Actor folder so you can use them in any project was made for Isadora 2, but the process is still basically identical: https://lucaswilsonspiro.wordpress.com/2017/08/28/isadora-set-global-user-actors-folder/

If you're not doing edge-blending, you can just add multiple displays to the same Stage as shown in the gif, but instead of overlapping them, you can just butt them up against each other at their edges so they have no overlap. Then, when you open IzzyMap for that Stage, you'll have a Stage that encompasses all three displays for mapping purposes.

@markelinus

That sounds extremely bizarre. As far as I'm aware, there aren't any features that would cause modifications in one Scene to overwrite an entire Scene elsewhere in the file.

Could you please provide a more detailed description (How are you modifying the Scene? What are the precise steps to cause this problem?), perhaps screenshots of the issue, or a gif/video recording so that I can understand better what is happening?

can't modify any scene wo overwriting all other..

..any suggestion avoiding this surprising behavior..?

Using Isa3 on an iMac i9 64GB AMD Radeon Pro 5700 XT 16 GB

[Staff note: While this issue looks like changes made in one Scene are applied to all Scenes, what's actually happening is Isadora is caught up trying to deal with media in an unsupported format and as a result is failing to show you the contents of other Scenes. In short, you're only seeing the contents of one Scene, regardless of which Scene you click on in the Scene List. The solution is to identify the problematic media, in this case, it was h265.mp4 videos that needed to be converted to h264.mp4, then replace it with media that's been converted to or re-exported in a format that's compatible with Isadora.]