Problems with saving api action

That’s weird. Haven’t seen this myself ever.
Simple workaround would be to create a new server action. It could be that your file is corrupted somehow.

  1. Open the current file in editor - right click and “open in editor”.
  2. Copy the JSON.
  3. Create a new server action - preferably with some other name.
  4. Open the new server action in editor.
  5. Paste the JSON as save.
  6. Try to open the server action in Wappler UI and modify… see if it works.

Also, maybe try to add a new step or something too, to test. It could be that the DB query step itself is misconfigured somehow.