GA4 doubles totals for some Order IDs

Has anyone experienced this?

I see in GA4 that some of our Shopify Order IDs are missing, yet, for some of them, GA4 doubles the order totals!

For example,

if an order in Shopify has a total of $600.01, GA4 shows its total as $1,200.02

If in Shopify it’s $648.33, in GA4 it’s $1,296.66

If in Shopify it’s $326.97, then in GA4 it’s $653.94.

What’s happening?