After resolving chain synchronization and balance inquiry, it's time to test the transaction function. The result? After some troubleshooting, we finally identified the root cause — webzjs was rendered useless by the latest Zcash upgrade. Normally, we would have given up at this point. But now, things are different. We are in an era full of uncertainties, and even the most complex problems must be addressed. Technical iteration works this way; adapting tools often becomes the real challenge.