Peak links disappearing when I specify genes?

[ptk1601]

Hello! I'm trying to distinguish in my CoveragePlot which links (seen here) are specific to Ifih1.

For some reason, when I specify a character vector with Ifih1 in the CoveragePlot command, the same links I saw without specifying the gene disappear. Is there something I'm missing here in my code?

CoveragePlot(RNA_integrated,
region = c("chr2-62500000-62700000"),
links = c("Ifih1"),
split.by = "orig.ident",
annotation = T,
)

Thank you so much!