G'day choroba,
I'm not seeing this checksum issue with other cpan installations;
however, if the problem persists, I will consider your suggested fix.
Having said that, it does sound a bit drastic.
Is there a reason why you're suggesting deleting all checksums?
In this particular instance, I've decided not to pursue App::Pod2CpanHtml.
It's 9 years since it was last updated.
An issue (#121652) was raised 5 years ago;
a patch was included; the Status is still "new".
I'm considering this to be abandonware and unsuitable for my purposes.