If you do electrical design in Revit 2017, you should apply this update ASAP!
This update (Revit 2017.2.3) fixes a bug that, in certain situations, while using the Wire command, could cause all the project Phases to disappear. I wrote about this previously: Project Phases Disappear in Revit 2017
The image below shows the MEP item listed in the "Issues Resolved" list. There are three other platform (meaning basic Revit) fixes as well. Click here to view this page online.
You can find the update in your Autodesk Desktop App tool now (or soon).
A previous Revit 2018 update resolved this same issue in that version.
This update (Revit 2017.2.3) fixes a bug that, in certain situations, while using the Wire command, could cause all the project Phases to disappear. I wrote about this previously: Project Phases Disappear in Revit 2017
The image below shows the MEP item listed in the "Issues Resolved" list. There are three other platform (meaning basic Revit) fixes as well. Click here to view this page online.
You can find the update in your Autodesk Desktop App tool now (or soon).
A previous Revit 2018 update resolved this same issue in that version.