
I just took a look at your file, and as you mention, you are using one stage through out. When I open Stage Setup, I can see that we have 'Stage 1' as required.
When I open the stage fullscreen or as a preview, I see the output as expected.
Are you testing with a connected display or only a projector?
You mention Isadora 4.0.2, you might want to update to the latest version. There have been updates that effect output, although this issue isn't one I have seen reported.
TROIKATRONIX : ISADORA - Get It

I provided a procedure via your support ticket that I think will correct the issue for you.
NOTE: the supported cameras are the 'ASTRA' original series of cameras, which includes yours and my Astra Pro, others that support the Orbbec OpenNI SDK may also work, but are untested.
Once the fix is confirmed I will share it here for the community.
@woland I actually just mistyped, I am only working with one stage at the moment, but I will check out the tutorial you linked
@juriaan I've done all of that, but here is my showfile if you want to take a look.
gad-showfile-4-february-24th-v4.0.2.izz
Please let me know if you discover anything awry.

i have a few of those CCTV IR floodlights but they are quite difficult to work with. the IR is generally produced by an array of LEDs each with their own internal reflector, so the beam is difficult to focus, even with a custom barndoor system (I mounted mine inside wooden boxes).
I have used them to light a performer for tracking from an overhead camera (b/w industrial USB cam with an IR pass filter) but it is difficult to prevent spill onto the floor and the falloff is quite steep. I ended up using 3 or 4 small units to light a 4.5m circular stage area.
If you do try this kind of solution, remember to put some gaffa tape over the light sensor so that the unit thinks it's always nighttime.
i much prefer using combined lighting gels with a halogen profile, but its not very sustainable - the wider the beam, the closer the lamp to the gel, the quicker the gels burn out, even when running at 25% max brightness, so i have needed to use at least 4 lanterns to cover a stage.
in an ideal world, there would be an IR version of a COB LED profile lantern, but it's a very niche application, so i don't expect they would ever be easy to find.

@ewan_fp said:
my stages
Re-reading your original post, I think this is the key here; you are working with multiple Stages. By default, Isadora 2 had 6 Stages (if I remember correctly) and that was also the maximum number of possible Stages. By default, Isadora 3 and 4 have 1 Stage, but you can add up to 15 more by clicking the little "+" button at the bottom left of Stage Setup (keyboard shortcut is Cmd+2) as well as up to 32 Virtual Stages (Stages not assigned to displays that can be used to output Syphon, NDI, Blackmagic, or for pulling content back into your patch for some advanced video workflows).
TLDR: If you're working with multiple outputs you need to add more Stages in Stage Setup.
Here's that Stage Setup tutorial again, it might make things a bit clearer: https://youtu.be/https://youtu.be/SIB31xqsxto?si=jIXG52wbcOkKpntI?si=jIXG52wbcOkKpntI

They have a few cameras now so I think we need to know your model number?

Yes, a show file would be extremely helpful.
The Stage Setup changed completely from Isadora 2 to Isadora 3, so upgrading a file directly from Isadora 2 to Isadora 4, your Stage Setup (Cmd+2) is basically going to be a blank slate that needs to be configured.
More Stage Setup Resources:
Short video: https://youtu.be/https://youtu.be/SIB31xqsxto?si=jIXG52wbcOkKpntI?si=jIXG52wbcOkKpntI
Long Video: https://www.youtube.com/live/wX7tbFUFiwE?si=HGYCsTbTowwQdmUC
If you’re jumping straight from Isadora 2 to 4, you may want to run through the Isadora 101 video tutorial playlist made for Isadora 3, as it covers the basics (including many of the major changes between Isadora 2 and 3 like Stage Setup) and should still be accurate info for Isadora 4: https://youtube.com/playlist?list=PLqiBJCe8prQuKpxQZUwaye7chQG_gvweg&si=aMDBu_0PmoliLsgk

Hi! Welcome to the Isadora community forum, could you maybe share a base show file with us so that we can verify it on our end?
Some general advice:
1) Make sure that you have your displays setup (extend mode), and turn off Displays have separate spaces, as Isadora asks you when you first open the program
2) Go to Stage Setup > make sure that your stage is connected to a 'Display'
3) Do you have your 'content' on the 'Force Stage Preview' output? You can check this by going to Output > Force Stage Preview, and make sure that Output > Show Stages works