Aggregate Polygons Failing to Resolve

[SaundersDrukker]

Hoping someone can help me with an ongoing problem. I have a rather large feature class dataset of polygons of forest which meets the habitat specifications for an endangered species of toad (very cool I know). The polygons were created from raster data and though they look pretty good there are several small polygons, and many small holes in larger polygons that I'd like to remove to make the map look better and to not over or under inflate the amounts of suitable habitat. 

I've tried to run aggregate polygons numerous times selecting only for polygons greater than 50m squared, and removing holes under 50m squared. The tool does not crash, but while building the tin it repeatedly reaches 100% but never actually resolves or puts out a shapefile at the end. I have checked and repaired geometry on this file maybe 50 times now and it has not fixed the issue. 

Any ideas as to why this might be happening? 

[DanPatterson]

see the workflow for

How Nibble works—ArcGIS Pro | Documentation

Generalizing zones with Expand and Shrink—ArcGIS Pro | Documentation

Smoothing zone edges with Boundary Clean and Majority Filter—ArcGIS Pro | Documentation

some combination of those often makes things "look nice"

[DavidPike]

perhaps try to union it to itself and don't frog-ret to uncheck the 'allow gaps' option https://pro.arcgis.com/en/pro-app/latest/tool-reference/analysis/union.htm 

[Tim_McGinnes]

You could also try a post processing step with the Eliminate Polygon Part tool - does require an advanced license though. It will get rid of small polygons or small holes within polygons.

There is also a known bug with the Aggregate Polygons tool - BUG-000151616 The Aggregate Polygons tool runs for hours to finish or does not finish at all. Apparently fixed in Pro 3.0.3.