I have a large file with a lot of information, it has a lot of design layers and sheet layers. I have a referenced drawing in a viewport on a design layer.
In some sheet layers this referenced viewport is visible in the sheet layer viewport, in other sheet layers it isn't.
Originally it was visible on all the sheet layers but at some point it stopped working on some of them.
I have reviewed all the sheet layer viewport class and design layer visibilities and it does not appear this is the cause. I have copied the attributes of the sheet layer viewports which work as expected onto the sheet layers which do not without success. I have copied the working sheet layer viewports into the sheet layers which do not work and they are fine initially but then fail after a few seconds. I have tried copying the viewport on different design layers without success. I have also toggled on and off the design layer visibility as grey or fully visible without success.
Is there something I am missing or is this a bug?
Vworks 2019 Mac OS 10.14.6
