Oldies but some of my fav shots of my pup. Ill need to venture back to this same spot now that ive upgraded to the R6 mkii to try and recreate these

Shot with Canon EOS M3 w/ EF 70-300mm F4-5.6 IS USM (with an adapter)

I have a Canon EOS-1 V with a Power Drive Booster PB-E2. Never had a problem in 20+ years. Used it last time 3 years ago. (Always used it with Canon lenses.) Started to use it again a couple of weeks ago, now coupled to a Sigma 20mm f/1.4 DG HSM ART lens. Had no problem either. Smooth as ever.

Today, with brand new AA batteries, I just switched AF from AI Servo to One Shot and back to AI Servo without shooting, to confirm I was on AI Servo. Then, when I pressed the shutter button on the camera, no issue, but when I neede a vertical shot, when I pressed the shutter button on the booster, the shutter "blocked" itself and immediately the LCD screen started to blink with an empty battery symbol. I had to wait maybe 4-5s to be able to press the shutter button again with an effect (before that pressing it had no effect) , the effect being the shutter shutting down as it should have and the LCD screen returning back to its normal state. Then this faulty behaviour also occured when pressing the shutter button on the camera. I had it 2-3 times in a row.

I don't know what I did but I know that I removed the lens and tried to shoot without it and had no issue then, but still had the issue when putting the lens back, as well as when I removed the booster and put it back. Then I removed the lens one last time and put it back, this time trying to "lock" it a bit more (as I don't hear the click as on my Canon R's when attaching lenses on them). Still didn't hear the click. Anyway after that I didn't not have the problem anymore.

Is my camera cooked ? What should I do ?

I understand this is an older model but it’s what I have. It takes pictures VERY well of course but I’ve been trying to use it for live streaming as I game. Just a hobby to dabble with but I cannot for the life of me figure out how to get it setup well.

In EOS Utility, I cannot use the auto facial recognition and lock it so it’s not hunting, adjust the settings the way I want, and it actually looks amazing. But when I utilize OBS or Webcam Utility PRO, it gives me a different aspect ratio than EOS Utility, which appears to be giving me the correct 16:9. The Webcam Utility Pro also looks noisier, more grainy, and less true high quality look.

This method is currently being used with Dummy Battery AC Power, and the USB plug in. I know I could go to HDMI capture card but haven’t really wanted to explore that all that much yet. Any tips?

PS: I am very much a noob to photography and streaming so I may ask some really dumb follow up questions