Midi events appears twice in the window (standalone reading)

Strange phenomenon on the standalone
When I play live, the MIDI events window correctly displays all MIDI events.
But when I retrieve the automatically recorded MIDI and play it back, all MIDI events are duplicated (each event appears twice) in the window and a warning message appears. However, I only have my keyboard and pedals enabled as MIDI inputs. I have always used this automatic MIDI recording a lot and have never noticed this phenomenon before. Have you ?

Translated with DeepL.com (free version)

It appears that the issue began with the latest update, 9.1.1. Files created prior to this update function correctly.

After checking in another DAW, it is indeed the MIDI file created by Pianoteq that contains the duplicate events