Proxyman doesn’t show traffic from a specific macOS app (Dart/Flutter, from App Store) while Wireshark sees it

Summary

On a Mac (ARM), Proxyman does not display any network requests from one specific App Store app. Wireshark shows network activity during login and other actions, but Proxyman stays empty. Other apps on the same Mac are captured fine. The app is built with Dart/Flutter and talks to Cloudflare.

Expected behavior

Proxyman intercepts and displays the app’s HTTP(S) requests like it does for other apps on this machine.

Actual behavior

No requests from this app appear in Proxyman, despite visible traffic in Wireshark at the same time.

Environment

macOS: (insert version, e.g., 26.0.1)
Mac: Apple Silicon (ARM)
Proxyman: (5.25.0)
App source: macOS App Store
App tech: Dart / Flutter
Targets: API application use cloudflare.

Steps to reproduce

Launch Proxyman on macOS with system proxy enabled.
Launch the App Store app (Dart/Flutter).
Perform networked actions (e.g., login).
Observe Proxyman — no requests appear from this app.
Open Wireshark — packets are visible during those actions.

No source files, tests, or entry points are named. Start by reproducing the App Store app's login traffic with Proxyman and Wireshark on Apple Silicon, then investigate why the observed traffic is absent from Proxyman; done means the app's HTTP(S) requests appear in Proxyman.