Token access section in admin profile is blank

Maybe also another idea, we could search for the broken tokens:

Search for broken tokens

root> zammad run rails r 'pp Token.all.select{|t| !t.preferences["permission"].is_a?(Array) }'

Autofix

I tried to give an autofix a shot, this command will try to autofix user 3,4

root> zammad run rails c
rails> Token.where(user_id: [3,4]).select {|t| !t.preferences['permission'].is_a?(Array) }.each{|t| t.preferences['permission'] = t.preferences['permission'].gsub(/[\[\]]/, '').split(/\s*,\s*/); t.save! }