Hi @PoJung-Lu,
Thank you once again for your detailed post. It seems that Qiskit completely changed their runtime service so this will require some big work to make the plugin work well for all of your use cases. If you could try running your experiments late next week after the release of PennyLane v0.32 it can help us see if some of the issues are resolved. If it’s not the case then we may need to wait until PennyLane v0.34 or PennyLane v0.35 so around the end of the year or the beginning of next year.
Please let us know if you have any questions about this and thank you for being part of the community and help us improve!