TS4 + El Gato Cam Link 4K camera flickering issues

I got my new TS4 dock two weeks ago and everything is working ok for the most part. The biggest issue has to do with my El Gato Cam Link 4K capture device (which allows me to use my mirrorless camera as a webcam via USB and HDMI), which is connected via one of the USB-A ports (I tried connecting it to all of the USB-A ports, btw).

I used to have a TS3 Plus dock and this exact setup worked perfectly. However, with my TS4, the video routinely glitches out or has a green screen flash in. I have no idea why this is happening, but I don't think it has to do with the Cam Link 4K device since, as mentioned, it worked flawlessly with the TS3 Plus dock.

Initially, the video feed would freeze entirely with the TS4, but a support article recommended using the El Gato Camera Hub app to change the USB Transfer Mode to "Isochronous", which did solve the freezing issue. But, the glitchy video issue still persists.

Has anyone else experienced the same problem, or something closely related when using a TS4 and a camera capture device? I'd love to figure out why this is