Active Admin Comments: "Comment wasn't saved, text was empty"

Question

I've got a brand new rails app (7.1.0) (with a few models) that I have set up with ActiveAdmin and the only model that works is my Admin model. I noticed that the admin model is the only table that has sequential ID's and the rest use UUIDS:

create_table "admins", force: :cascade do |t|
    t.string "email", default: "", null: false
    t.string "encrypted_password", default: "", null: false
    t.string "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["email"], name: "index_admins_on_email", unique: true
    t.index ["reset_password_token"], name: "index_admins_on_reset_password_token", unique: true
  end

  create_table "bids", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
    t.string "state", default: "bid"
    t.uuid "vendor_id", null: false
    t.uuid "job_id", null: false
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["job_id"], name: "index_bids_on_job_id"
    t.index ["vendor_id"], name: "index_bids_on_vendor_id"
  end

This is my only hint. When I post a comment, I see that it is including the comment body, but seems to ROLLBACK when it checks for the bid model (above) but always looks for id = nil rather than the id (which is in post body as the resource id, as expected).

Why would it fail to correctly query the resource (in this case, the bid) when I make the comment? What should I do to correct this issue?