When guiding with PHD2 fails during a schedule, it causes a capture failure marking the capture as "Aborted". But when the scheduler tries to recover, the PHD2 guide adaptor returns the wrong value:

guideInterface->call(QDBus::AutoDetect, "getStatus")

returns "no error" despite PHD has stopped guiding.

As a consequence, the scheduler simply executes the next capture sequence and does not restarts guiding.