I have successfully connected shippo to woocommerce. This connection only worked when litespeed cache was turned off. I have attempted to sync orders and they will not sync if litespeed is turned on. (Obviously)
I am seeing if I can discover the solution from the fiddling with the settings, but if I could receive any advice, perhaps a shippo URI to exclude in cache settings that would be very helpful.
I have object caching enabled with memcached as well.
Article on the Object Cache settings in Wordpress
https://blog.litespeedtech.com/2018/02/07/object-cache-support-in-lscache/
I also added goshippo, api.goshippo & app.goshippo URLs in regular (non-object) cache excludes as well.
Thank you