Today's crop from the trusty old AW1 - it seems some water got inside the front glass of the zoom lens
Ouch, sorry for your trouble. That sounds like a leak though the zoom ring seals. These two o-rings are only half as thick as the one at the mount and non-user serviceable. Unfortunately the front of the lens is is very difficult to dry out, as that part of the lens is pretty isolated from the mount. On the bright side, that zoom lens is cheap to replace, even lower priced than its land-locked version.
For anything but quick dipping at the surface, I use the 10mm (with the Olympus fisheye converter), which does not have this weakness.
Nice jellyfish image by the way.