the uncorrect recognition of prefix when using hg38 build

[FrancisNietzsche]

When I chose hg38 as my build, the job failed with the promt: "Your upload data contains chromosome '1'. This is not a valid hg38 encoding. Please ensure that your input data is build hg38 and chromosome is encoded as 'chr1'." But the name of my uploaded files were named exactly as the prompt demands. Weirdly, the job worked successfully when I chose hg19 as my build. (my data's build is hg38, of course)
Here is an example of my file: chr1-0802.vcf.gz