Frame Grabber & Viewports in 4.22

So i was working on a plugin to get images from a secondary camera in the scene to my server, I wanted a second camera in the scene to capture images and send it to my server, after much research we decided to use frame grabber and displayed the image of the second camera on the view port using the ‘Texture Only’ function of the spectator mode for the viewport,

In 4.21 this worked like a charm i was able to get snippets of the seconds camera using frame grabber, but since upgrading to 4.22 the framegrabber is capturing the viewport from inside the HMD and not the viewport displayed on the screen like before.

Has there been any changes in code that could have affected my plugin, i couldn’t find anything relevant in release notes. Does anyone know what might be going wrong ?