the only time Ive had my Rample lockup was once after a firmware update, but then Squarp fixed the update - and all was good again.
I use my rack everyday, and Ive had the Rample in two different cases - though usually its in my main rack in a Pittsburgh EP360.
that said, I see modular forums full of posts about many modules working better in some cases that others … its seems a common issue, it’s not just lack of power, sometimes it can be related to modules pulling a lot of current during startup. (startup current in-rush iirc)
but I’d say its not normal… I’d contact Squarp - via contact form
detail what happens… e.g. what is the display doing?
one random thought, there were issues with initial firmware which sometimes corrupted samples/kits.
did you ‘restore’ these samples after you updated the firmware?