Hi @Eoin_Moore,
Welcome to the PYNQ community.
The composable overlay that is in the main branch can only be built with Vivado 2020.2.2 and would only work on PYNQ 2.7.0.
The composable overlay that is delivered to the KV260 with the PYNQ 3.0.1 image is on this branch GitHub - Xilinx/PYNQ_Composable_Pipeline at v1.1.0-dev, and can be built with Vivado 2022.1
Recently there was a question about using Vivado 2022.2 to build the composable, you can try this branch. However, this is something that is not thoroughly tested.
Mario