Failed to open map view(?)

[RandyMcGregor_BMcD]

I am rather suddenly getting this error message on a map with multiple layers and groups of layers that represent specific workflows. No idea what could have triggered it. Is there any way to recover a dead map?

[Ed_]

Maybe try suggestions in the following post

Failed to open map view

[Robert_LeClair]

To add to the thread, this was seen in an Esri Support case and this was their solution:

ArcGIS Pro was updated to ArcGIS Pro 3.3.0 and a workaround was implemented to stop the message of "Failed to open map view."
Workaround:
1. Open the ArcGIS Pro project.
2. Opening each map for one at a time.
3. Remove the layers from that map.
4. Save.
5. Delete map.
6. Save project.

Other items that may cause this error:  broken data links, an attribute table is open when saving the *.aprx (close the table and resave the *.aprx), *.aprx is on a network drive vs. C: drive, or corrupted toolbox (*.atbx) - delete and resave *.aprx.