Hi @lakshan
Thank you again for your message! Calling rpc_system_version() crashes my wio terminal, same as all the rpc/wifi library calls :(.
I called rpc_system_version last week after installing the firmware (and before the problems started happening). It used to show “RTL8720 Firmware Version: 2.1.1”
I tried installing the libraries in two ways : on one computer, using Arduino Library Manager, on the other computer, using the zipfiles downloaded from github. In both cases, I checked that their version matches what you described.
Best
Olivier