Rather than stress over how to fix my FC voltage and current sensor, I just swapped my cameras from my other build. Some cameras have built in OSDs such as the Foxeer Predator with voltage and timer, and Runcam Racer 5 with built in gyro, which is great for use with wings, or FPV quads when your Flight Controller misbehaves...
Have time to visit my fpv store?
https://shp.ee/rgk8xct