Hello @elliot
See the image i attached to this post to see how it looks like now.
I have no clue what the field name of these keys are, since a few updates ago newly created custom fields display as keys instead of field names.
So it used to be like post 1 attachment, but now its like this posts attachment.
Also i am not sure if the longer field keys are repeater fields.
Hope you see that now the field keys are displayed instead of the field names.