The main problem that could occur with reversing cameras is getting the positive and negative leads mixed up.
Reversing the polarity means it will not work or could even break.
Another problem is water. Although reversing cameras are waterproof they should not be pressure washed. Try to protect the system when this is essential and avoid
Reversing cameras are also subject to temperature changes and vibration. They are designed to withstand this, but, even so, they can fail for that reason.
Corrosion can be a problem on some reversing cameras – and aluminium works very well against this on bullet style cameras .