Chunks keep flashing or turning invisible

Parts of the gameworld keeps flashing in and out of existence rapidly when I play. I'm not doing anything special when this happens but it has been happening more and more recently (it did not occur in older versions).

Sometimes only distant chunks start flashing for a bit, other times blocks disappear as I'm standing on them. I can still stand there though, they're just invisible.

Other times a side of a block turns invisible temporarily when I mine it.

Can't show pictures because the main issue is rapidly flashing chunks.