Join failing when using new App Client ID/Secret instead of legacy SDK keys

Hi everyone,

We are attempting to switch from Legacy SDK Keys to the new App Client ID/Secret to generate meeting signatures and allow our Meeting SDK to join the meeting.

We found that the new App Client ID/Secret does now work with external meetings but works on internal meetings. It generally behaves as if the App is not published.

Manual Testing Results:

  1. Using Legacy SDK Keys on Internal Meetings: Works as expected
  2. Using Legacy SDK Keys on External Meetings: Works as expected
  3. Using production App Client ID/Secret on Internal Meetings: Works as expected
  4. Using production App Client ID/Secret on External Meetings: [FAILS] Does not work

Does anyone have any insights and/or can help with this issue?

Edit:@yoon.conner for visibility. Thank you!