Yes, similar for me. After I spawned with the A350 the first time, everything worked fine until I inserted Simbrief ID and linked the EFB to Navigraph. That made the Sim freeze, and since then, always CTD after spawning at the gate.
I saw in the iniManager that inibuilds recommend deleting the content in this folder: C:\Users\[YOUR USERNAME]\AppData\Roaming\Microsoft Flight Simulator 2024\WASM\MSFS2024\inibuilds-aircraft-a350
I did that and it stopped the Sim from crashing at spawning. But now, as soon as I click on 'Request company flight plan', the Sim freezes. Will updating to SU1 be the solution?