We hold floating point numbers in the browser as 64bit but we never show that to the user. We always round to 4 significant digits, including in the downloads offered outside the hub downloads. However, we do use the more precise number when searching for samples.
What this means is that sometimes a sample is expected to be included but is actually not included due to rounding

https://xenabrowser.net/?bookmark=92f8094adc2f89d0d0c4ac5bddbf8176
A potentially easy solution is to offer the more precise floating points for download from the UI.