Imagemagick installed via Homebrew, convert missing
Solution 1:
Think I resolved the problem. convert is present in /usr/local/Cellar/imagemagick/7.0.10-28/bin as a symlink to magick; which led me to look in /usr/local/bin where mogrify exists as a symlink; convertis present there too. Running rehash (hash -r) brought it into visibility on the path.