InnoSetup activation issue

Hi,

I distribute my software and the updates as InnoSetup installer.

Lately, a lot of my customers have been having an issue where in InnoSetup, it won't detect an existing activation. So they get "Activated on maximum number of machines" error and I've to manually reset from the LimeLM control panel.

Now even though I can't replicate this issue on my side (for me when I run an updated installer, it simply skips the pkey form page which is the correct behavior), I was wondering if there is a known issue that I can somehow fix?

Thanks.