OT arp only works when midi track is "unmuted"

Hi there long time lurker first time poster.
I have been a rytm user for a long time and have finally purchased a ot mkii I love it. It’s very quirky but very fun.
One thing I want to check with you guys that had me stumped for a full day and no mention in the manual is,
The arp only sends midi signals when the midi track is not muted however the chromatic mode sends midi no matter if track is muted or not.
This seems like very odd behaviour to me as sometimes I would like to play the arp without opening up the sequnece.
Can anyone tell me if this behaviour is correct?
Kind regards

Yes. It is correct.
Mute in midi mode, mutes the trigs in the sequence.

using a midi keyboard, or ot chromatic mode, will send midi, even if muted.