I am in the exact same position as you. Have deleted all other projects. Removed the previous sample data and reloaded and I am still getting same error message :“failed to sampleData load for cluster ‘myAtlasClusterEDU’”
I have the same issue. I tried deleting all of my collections (sample dataset), it didn’t work, then I deleted entire project, created a new one with the same name and credentials, I imported sample data set, it was imported and then when I try to do check on tutorial, I got the same errror message. Removed everything again and this time I didn’t import dataset, clicked check and still got the same error even though I have enough storage to import it.
The possible issue might be the fact that I created a cluster during first videos, I didn’t wait for the practice video and then I got the issue of needing more storage size to import data, but after deleting everything I’m still getting an error and I don’t get it.