The answer to 'sewer camera inspection won't flush' is that there could be a blockage or obstruction in the sewer line preventing proper flushing. This is a common issue that can be caused by things like tree roots, debris, or a broken pipe. Symptoms may include slow or backed up drains, gurgling noises, or sewage odors.
In some cases, the sewer camera inspection may have identified the blockage, but flushing the line is still not working. This could mean the blockage is more severe and requires professional plumbing services to properly clear the line. Attempting to flush a major blockage on your own could potentially make the problem worse.