New testing image Bookworm Oram 64bits

Subject: midiTTY issue

Ok, I started from scratch. With the latest-stable image and after updating.

A simple midi setup:
create a midi chain, set input to the external device and output to midiTTY for all midi channels. In webconf enable system messages under midi option is true.
See images
webconf
image

If I start the external device, which sends Start/Stop/Clock messages, the output on the midiTTY is:
SYS START
SYS START <—
SYS STOP <—
SYS CLOCK
SYS CLOCK
SYS CLOCK
SYS CLOCK

which means. System messages are passed, but a strange START/STOP pair appears at the beginning. I’ll investigate in it later, when I’m back from work.
This was working before without any issues…

Anybody else observing this with an updated zynthian/freshly burnt image?