I noticed an older post from a few years back having the same issue, but there was never any resolution or explanation as to why on the original post https://community.esri.com/t5/arcgis-pro-questions/arcgis-pro-2-1-and-earlier-layer-s-data-source-co...
I am updating a lot of our maps with a new SDE table that has the exact same fields as the old table, but just newer additions. I am encountering a few odd things here:
First:
When I try and "Set Data Source", the first thing that happens is for a brief time I can see all the LRS Event tables, but a few seconds later, the "Portal tab" expands and all the data is no longer visible. (see Portal Data Issue 1.jpg & Portal Data Issue 2.jpg).
Second:
If I act very quickly before the "Portal tab" expands, and manage to get into the actual LRS Events tables on SDE and select my table, I get an message stating "Layer's data could not be changed".
This is something that is easily done in ArcMap, but not ArcPro. Any solutions or reasons this is occurring? It's kind of a pain having to re-add the new LRS Events table, and then duplicate it for every layer I want to update to the new table and import symbology for that and then change all the legends for all the layouts relating to that map if I fail to rename the newest data the same way...
Note: I was not able to access this link at all which may help to explain some of these issues https://www.esri.com/arcgis-blog/products/data-management/data-management/arcgis-pro-tips-5-tips-for...
