Hello there, Sure update the plugin to the latest version and check the flow on your end.

Regarding the memory size issue as we are not able to recreate it on our end we would request you to create a staging site where the issue is replicated and share the staging site url, temporary admin and FTP access of the staging site with us so that we can look into it and assist you accordingly to resolve the issue.
Also while sharing the access don’t forget to mark your reply as private.