Moving a feature class to feature dataset

[FloraRoy]

I am trying to move a feature data class into a feature dataset. They are both within the same File Geodatabase that I have created. The coordinate system and projection is the same (WGS 1984) but I receive an error everytime I try to move it. This is the error I receive when I try:

So I have checked the Properties of the dataset and feature class and found the following:

Feature class properties:

Dataset properties:

The spatial reference looks the same to me.

I have also tried the Import -> Feature Class but that doesn't work. This is the error message I receive when I try to add it to the Feature Dataset:

I'm not understanding the issue here. I am doing this because I want to create a Topology for the feature class. To do that, the feature class has to be within a dataset within a geodatabase. I want to add a Topology to check for overlaps and gaps within my featureclass.
Thankful for any help!

[Robert_LeClair]

Based upon other related Esri Community posts and a few support cases, I'm wondering if there is a difference between the XY tolerances and resolutions between the FC and FDS?  Related question here too.

Compare your FC and FDS tolerances and resolutions.  Do they match?  If not, then this is likely the cause of the error messages.