DUC/DDC CH0: Frequency Shift (Hz) Error

Hello, 

Not sure if this is a bug or I'm doing something wrong (probably the latter).

I'm on ubuntu using GNU Radio 3.10.9.2 (Python 3.12.3)

I have the following blocks (all RFNoC):
RX Radio -> DDC -> DUC->TX Radio

I try to use the frequency shift on DUC or DDC and get the following error:

[RFNoC Stream Controller] Error starting stream: RfnocError: ResolveError: Attempting to overwrite property `freq@USER:0' with a new value after it was locked!
[ERROR] [RFNOC::GRAPH::DETAIL] 0/DDC#1: RfnocError: ResolveError: Attempting to overwrite property `freq@USER:0' with a new value after it was locked!

RuntimeError: RfnocError: ResolveError: Attempting to overwrite property `freq@USER:0' with a new value after it was locked!

Please let me know what additional information you need. Thank you in advance.

***I also have a question about why my TX/RX does not activate in this setup. I'm trying to receive a signal, shift it with an offset, and transmit it out as soon as possible. I'll submit that later with more details but it's probably a config issue (btw DUC/DDC are both needed since that's how the SEP points in FPGA image for the X410 SDR come configured). Flowgraph launches if I just set offset to 0, but TX and RX lights remain off.