interesting. it seems to be having an internal error on your address but not on mine. I’ll dig deeper and figure out the root.
edit: it’s likely volume related. Looks like the address has close to 3000 transactions. Fear not, i’ll figure out a solution.
edit2: I’ve isolated the transaction addresses were throwing the errors. It looks like the root cause is if the transaction is originating from a z_address being sent to a t_address. Since the originating address is Empty, it fails to verify if it is a self sent transaction. So it kills the process rather than spitting an error. Silly oversight on my part. Should have a fix deployed shortly.
edit3: fix is in place and deployed. I increase the timeout to 5 minutes (up from 30 seconds) to handle large requests like yours. Also fixed and the Internal Server error which was caused by zk transactions. I’ve verified it is working on @engineerking 's address.