Saved Program projector shows only gray when studio mode is off at startup

Operating System Info

Windows 10

Other OS

No response

OBS Studio Version

27.0.1

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/9aE6TAGBuSFm0y3o

OBS Studio Crash Log URL

No response

Expected Behavior

Fullscreen projector on Program should show an image on startup even if Studio Mode is disabled.

Current Behavior

Fullscreen projector on Program opens but shows gray on startup if Studio Mode is disabled on startup.

Steps to Reproduce

1. Enable "Save projectors on exit."
2. Enable studio mode.
3. Open a fullscreen projector on Program.
4. Disable studio mode. The projector continues to display the program video.
5. Close OBS and restart it.
6. Fullscreen projector opens, but displays gray instead of program video.

To work around this, you must close the projector, enable studio mode, and re-open the projector. Alternately, leave the nonfunctional projector open, enable studio mode, and restart OBS. If studio mode is enabled on startup, then the saved projector will start properly.

Anything else we should know?

No response

Start by reproducing the saved fullscreen Program projector behavior described in the issue on Windows 10, using the linked OBS log for context. Compare startup with Studio Mode enabled and disabled, then trace the projector restoration path. Done means a saved Program projector displays the program video on startup regardless of Studio Mode state, with regression coverage if the relevant tests are found.