Polygon POS - Mostly empty blocks

For the last 8 hours the Polygon POS blockchain has been producing mostly empty blocks. For example: Polygon Blocks #34547344 | PolygonScan and Polygon Blocks #34547386 | PolygonScan but there are many many more. I ballpark at least half the blocks is empty - if not more. Is there any indication what is going on? Seems to be some consensus issue. Would appreciate any indication of a solution so we can plan accordingly.