Hello,
First, thank you for the ilincs website, it is great!
However, I am encountering an error when I try to upload a signature.
If I try using the “Submit up and down-regulated genes, I get this message after entering a couple thousand genes into the Up-regulated genes list and in the Down-regulated genes list and clicking “submit signature”.

I also get an error when trying to upload the signature into the “Upload a signature” tab. Here I download “sample4” and try putting my gene symbols and Log2FC values into the columns in the sample data. Whether I try uploading as a csv or as a tab delimited txt file.

In fact, even if I download your example file “sample4.csv” and try uploading it as a csv or as a tab delimited txt file it fails.
Thank you for any help.
Best,
Josh