Issue with Custom Events Not Appearing in Mixpanel All Events Dropdown or Insights Report

{
  "event": "Plan Button Clicked",
  "properties": {
    "time": 1771131021.015,
    "distinct_id": "$device:60413c94-530f-462e-9a9a-98703d45828b",
    "$browser": "Safari",
    "$browser_version": 26.1,
    "$city": "Atlanta",
    "$current_url": "https://www.site.com/apply-now?jonoTest=20Safari",
    "$device_id": "60413c94-530f-462e-9a9a-98703d45828b",
    "$initial_referrer": "$direct",
    "$initial_referring_domain": "$direct",
    "$insert_id": "dgna0wmkukyuaiuj",
    "$lib_version": "2.74.0",
    "$mp_api_endpoint": "api-js.mixpanel.com",
    "$mp_api_timestamp_ms": 1771131022268,
    "$mp_event_size": 744,
    "$mp_replay_id": "6851ec7a-88f1-4e9a-912a-70056b458c1b",
    "$os": "Mac OS X",
    "$region": "Georgia",
    "$screen_height": 1440,
    "$screen_width": 2560,
    "destination": "https://www.site.com/checkout/plus",
    "mp_country_code": "US",
    "mp_lib": "web",
    "mp_processing_time_ms": 1771131034976,
    "mp_sent_by_lib_version": "2.74.0",
    "page_path": "/apply-now",
    "plan": "Plus"
  }
}

{
  "event": "Payment Submitted",
  "properties": {
    "time": 1771128240.304,
    "distinct_id": "a7fa22a6",
    "$browser": "Microsoft Edge",
    "$browser_version": 144,
    "$city": "Mt. Pleasant",
    "$current_url": "https://www.thebrandbuilders.network/checkout/plus?coupon_code=100P",
    "$device_id": "f686ddd5-8bd3-4aac-956b-153a6f8b6451",
    "$initial_referrer": "https://www.thebrandbuilders.network/",
    "$initial_referring_domain": "www.thebrandbuilders.network",
    "$insert_id": "guy8i9qi5vfwfehw",
    "$lib_version": "2.74.0",
    "$mp_api_endpoint": "api-js.mixpanel.com",
    "$mp_api_timestamp_ms": 1771128242483,
    "$mp_event_size": 791,
    "$mp_replay_id": "d2af538d-aba8-4ada-918f-ffd4a3a63c61",
    "$os": "Mac OS X",
    "$region": "South Carolina",
    "$screen_height": 1440,
    "$screen_width": 2560,
    "$user_id": "a7fa22a6",
    "mp_country_code": "US",
    "mp_lib": "web",
    "mp_processing_time_ms": 1771128243676,
    "mp_sent_by_lib_version": "2.74.0",
    "page_path": "/checkout/plus",
    "plan": "Plus",
    "utm_campaign": "plus",
    "utm_medium": "paywall",
    "utm_source": "join"
  }
}