Neo Coolcam Siren Issues

I have 3 of the older style Neo Coolcam Sirens (No USB power option) and seem to be having some issues with them

They don’t seem to trigger quite as quickly as I expected there is a short delay?
Sometimes after being triggered they don’t got back to the “off” state and remain in the “on” state which is not normal for them?
Sometimes after being triggered even if set to only go off a couple of times they just keep going off for a long time before eventually stopping?

This is on latest HASSIO etc running Zwave2MQTT

I hope someone has an answer as these seem to be the best sirens but are no good if that can’t function correctly all the time…

I have 1 with usb… noticed the same! That’s why I haven’t take them in production yet :see_no_evil: ( QT openzwave aeotec gen5 nuc8i5)