Getting "Called attribute on invalid object" warnings
I don't know if it's just me, but I am getting a message in the output window with the text "Called attribute on invalid object" followed by an integer id whenever I load disk_out_ref. To get the error, I just open disk_out_ref.ex2 and hit apply. I get the following response:
This is on ParaView 5.4 RC2 (binary downloaded from Kitware) on a Mac 10.11.6.