@buikbeeld It looks like they have just released a new version (1.6.16). Judging by the change log they should have fixed the issue. But please check for yourself before updating. You’re welcome 😉
@buikbeeld Do you have Parcel Pro installed by chance? They have recently pushed 2 updates which resulted in nonce issues. If you do, try to downgrade it to 1.6.11 or lower.