@Peter Hello, we have created a server specifically to root out WASM crashes. If you are willing to contribute, please join; https://discord.gg/DuNYA4Mb
SU3 is not officially compatible with the A350 atm, SU3 is still Beta. I would advise returning to SU2.
Please also ensure your following the correct path for WASM when deleting.
And finally we are 100% determined to stamp on WASM related bugs and are going for a big push to do so.