Thanks for your reply.
About pruned nodes:
according to: https://bitcoin.org/en/full-node#configuration-tuning
Running a node in pruned mode is incompatible with -txindex and -rescan. It also disables the RPC importwallet. Two RPCs that are available and potentially helpful, however, are importprunedfunds and removeprunedfunds.
I wonder if the RPC command -importwallet is used in the plugin?
Well, I’ll try to spin up a pruned node and report back!