I use .jpg images attached using the 'Reference' command to trace over detail. Since updating to latest v2018 I am having problems with NOT selecting the image.  Say I want to move some entities and try dragging a window to select them it always grabs the image too even when nowhere near the image frame.  In addition the snap command will regularly find the image frame whilst free clicking anywhere within the image.

I have the image on a locked layer, I have the 'displayimageframe' set 'No', I have tried 'ENBLIMGHLT' set to '0',  I have tried the image in an attached reference file and 'ENBLREFEDT' set to '0'.  All still allow the image frame to be snapped to and moved making it impossible to work on and edit the drawing.

Not sure whether it's connected but the locked layers are generally behaving different too, for example, 'powertrim' now trims and extends to entities on a locked layer rather ignoring them as it would in v2017?

Any idea welcome!

Sti