Can't reach slow shutter speeds on dial

Thank you. Unfortunately in S mode it stops at 1/20 as well, it won't go any further. I want to stay in manual and get past 60 seconds to get to bulb time etc and get to Live Composite, it's the only way to do it. As it is a second hand camera, perhaps I should reset to factory settings, or even contact the seller as the camera does have a guarantee.

I've just tried your settings on my EM1 mk2 - the problem is definitely the Pro Cap setting which only works at higher shutter speeds. Manual mode on the mode dial does not override the previously set shutter mode in certain settiongs! Switch to a single shot mode and everything works correctly. I've had both the Mk 1 and now the Mk 2 for over 5 years and I'm still learning their many quirks - the more the beast can do the more scope to completely mess things up!