[D] Does anyone know why my test loss is spiking so crazily?

[i tried normalising the data, looking into the specific epoch and data \(seems fine\), training until the epoch before the crazy spike but i still cant figure out why](https://preview.redd.it/xikdozpz5bqc1.png?width=1536&format=png&auto=webp&s=4a5cd6f22077f58282c528f7aed7cac267a194b6)

i tried normalising the data, looking into the specific epoch and data (seems fine), training until the epoch before the crazy spike, added L2 regularisation and dropout , but i still cant figure out why. the model used is a 3 layer gcn from pytorch. im new to this, so im …

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