Hello,
Could you please, make sure that everything is ok with other types of advanced checkout (classic/multistep) or disabled. If so then it seems we understand that due to structure of such layout (separated one) it is not possible to make compatibility with such plugins which require specific (default) structure of checkout page. If so, you can only switch to another type (not separated type) and use them. In next update we will add notification about possible incompatibilities of such layout type with some delivery/payment plugins.
We checked it from our side and we really found that the bug persists now only with separated layout (which you are using) so please, check the text above where we described what is possible to do (change layout to classic/multistep or disable)
P.S. Multistep layout should be ok on your staging because we uploaded our fix for such layout and it will be included in the theme update.
Regards