ArcGIS Pro 3.30 - GeoTIFFs with only a geographic coordinate system

[KeithAddison1]

I was making some GeoTIFFs of a map the other day and noticed something unexpected.  When I export them with no projected coordinate system and only a geographic one assigned, it produces a raster that Pro & ArcMap cannot read, they show up as unknown coordinate system and are located incorrectly.  When I put them in a projected coordinate system Arc finds and locates them fine. (it doesn't seem to make a difference if I have the GeoTIFF tag box checked or not)  This is for making a TIF out of a map, not just some raster dataset, so the output coordinate system is set via the Map properties/data frame/map tab, ie this thing below:

And not via any GP tools or the like.

My question is why?  Shouldn't Arc at least be able to read what the output GCS is?  Its like it can't read its own output?  Is this a bug?

[KeithAddison1]

Testing this more today, now I can't get it to output into a coordinate system Arc recognizes.  No matter if its in a GCS or PCS.  Why is Arc producing georeferencing that it can't read?  This must be a bug.  Can anyone think of another explanation?

[RhettZufelt]

You really didn't give much info on 'how' you are exporting the map.

My testing shows that the Export Map Button in the Output group on the Share tab does NOT honor the output coordinate system in the Environment settings.

However, in Pro, If I change the coordinate system of the Map to GCS (even though my feature class data is in State Plane), then export to TIFF (I checked the 'Write GeoTIFF tags' box), it outputs my map as a tiff image that Pro and Map can read just fine and is aware of the GCS of the Tiff file.

R_

tested with 3.2.1 and 3.1.3

[KeithAddison1]

I exported from the layout using the panes Share -> Export.  By the environment setting I assume you mean here:

Toggling that makes no difference for me either, ArcPro still doesn't recognize the coordinate system.  Is there a setting somewhere I'm missing?

I've tested it with tags & no tags for both a PCS and only a GCS assigned to the exported map, in all cases it isn't recognizing the coordinate system.  Define Projection tool in Pro can't fix it in the case of the correctly located (but unrecognized by ArcPro) PCS (still says unknown coordinate system)  ArcMap's Define Projection tool can fix it though, after which Pro can recognized the coordinate system.  This must be a bug in 3.3.

[RhettZufelt]

The environment setting I refer to are for the GP Tool environment here:

But, exporting the map with the Share/Export doesn't honor this setting.

However, if you set the coordinate system for the Map:

Then export the GeoTIFF, it will then be in the coordinate system of the Map and will be detected by map/pro.

R_

[KeithAddison1]

Yep, that's exactly how I'm setting it in the Map Properties and getting the unknown coordinate system for the output.