Encountering error message when trying to load shapefile to Google Earth Engine

I have been trying to import a shapefile I have created in QGIS based on features from a boundary database I downloaded for forest conservancy boundaries in Scotland. The error message is:
Layer error: Description length exceeds maximum.
Here is my code.

var hg = ee.FeatureCollection("users/annaelizabethk97/Highland3");


// Import my shape file of the NR
hg = hg.geometry();
Map.centerObject(hg);
Map.addLayer(hg, {color: 'red'}, 'hg');

I have tried reuploading everything multiple times, but always get the same message. The CRS in QGIS has been set to EPSG:27700 as it has ‘performed a ballpark transform from EPSG:4326’. However, I set the CRS in the polygons that I created the shapefile with to EPSG:4326. I am very new to both Google Earth Engine and QGIS, so I have a very limited knowledge.
Could having the wrong CRS cause this error? Are there any other things I could try?

I found one other question asking about this error but they were trying to merge features
(Google Earth Engine: Layer error: Description length exceeds maximum).