When trying to turn "display inactive topology" on or off in Tools>Options>Layout, a dialogue box appears stating “updating conduit descriptions” and takes long time to make changes.
The "issue" is when you have multiple editor models open, specifically for conduits, and that includes FlexTables, Alternatives, and Property Grid, and you open the options dialog and click OK, any instance that is specifically watching for certain formatters will trigger the conduit description update that you see on the screen. This typically happens in the background except when the model is at least medium or larger and the progress is shown as the descriptions are updated. This can make it look like there is a loop occurring.
To avoid this issue, the workaround is to simply have no conduit FlexTables or alternatives open and deselect any conduits before opening the options dialog and clicking OK.
We have filed a defect for this to be considered in future release of the product, reference number is #962198.
Making inactive elements disappear