error: xdr processing error: xdr value invalid | Bug Report

[Stellar-tickets]

as reported here in discord: https://discord.com/channels/897514728459468821/966788672164855829/1240783985370595429

you can't invoke hello world from 23.4.0 on testnet

Hey guys I'm p[robably doing something wrong.
I deploy it, it returns the contract key, but I can't invoke

soroban contract deploy \
        --wasm target/wasm32-unknown-unknown/release/hello_world.wasm \
        --source bob \
        --network testnet
CA2PGFVXARVLBJHITPJLCMTKL2VNO32HYUES5RJRT3CHK35IOFDPG2S6
soroban-hello-world soroban contract invoke \
  --id CA2PGFVXARVLBJHITPJLCMTKL2VNO32HYUES5RJRT3CHK35IOFDPG2S6 \
  --source bob \
  --network testnet \
  -- \
  hello \
  --to RPC
error: xdr processing error: xdr value invalid