Restoring session skips words

Hey

So to put things simple. When I create a session using say

hashcat64.exe -m 2500 caps.hccap Lists/rockyou.txt -r rules/best64.rule --session=wpa -w 1

And then stop it with a checkpoint at say 1% in progress.

When I then resume it with

hashcat64.exe --session=wpa --restore

Then the progress can start at 1.79%.

Any idea?

Thanks!