The Court of Justice delivered on 7 April 2022 its judgment in case C‑645/20 (V A), which is about the Succession Regulation:

“Article 10(1)(a) of Regulation (EU) No 650/2012 […] must be interpreted as meaning that a court of a Member State must raise of its own motion its jurisdiction under the rule of subsidiary jurisdiction referred to in that provision where, having been seised on the basis of the rule of general jurisdiction established in Article 4 of that regulation, it finds that it has no jurisdiction under that latter provision”.

Source: https://curia.europa.eu/juris/document/document.jsf?text=&docid=257493&pageIndex=0&doclang=EN&mode=req&dir=&occ=first&part=1&cid=2662053