While testing I uploaded a pom file to maven releases, then I deleted it. I noticed that while the pom deleted the folder structure remained in the UI with nothing underneath it.
While I also believe this is incorrect, it gives a false sense that there is something to browse there. Unless I'm misanalyzing, if this was occuring for 50000 of your 100000 components, tree view would be near useless. I am leaving major because of this.
Tree view is new for 3.7, so did not check older NXRM3 at this time. I didn't check NXRM2 for related behavior.
This behavior did not occur for yum or nuget, so I am not sure it's not Maven2 specific (thus component). I didn't check any other format at this time.
I attached my pom and here's my curl in case it helps: