Any purchases of AMP were displaying as being worth 6 orders of magnitude more than they were - the display showed €65million worth of AMP bought for €65, selling would "allow" selling that much AMP but only for the lower 'correct' amount. My Revolut account now has statements showing transfers of tens of millions so if there's any tax implication on that I'm so screwed.
Revolut's idea of a fix was to remove AMP from their list of cryptos - without resolving the problem