Multiblock Inspector causing extra blocks to disappear.
To duplicate this issue, use ParaView v5.10.1 and the Multiblock inspector. Create and render two blocks on the display. Change the color of one of the blocks and then change the Opacity of the same block to .1. Hide the other block by clicking the checkbook next to it. Both blocks will then disappear. If one of the blocks is selected it will have the usual wire-frame, but when it is de-selected by clicking anywhere other than any item on the list it will disappear also.Hiding_Blocks.pdf
Edited by Phil Smith