Until a few days ago sellers were able to connect a sequence. We have some failsafes in our sequences. If the seller makes certain errors, they get an error message (task to contact Admins). They were able to complete this task, which would end the sequence. Then they had a "connect sequence" button in the up next widget. I have a screenshot but it doesn't seem to be possible to insert it here.

Without the button sellers have to get in touch with Admins who then reconnect the sequence. Completely unnecessary inconvenience.