I have experienced similar results getting worse as I increase mipmap levels to almost unplayable levels. In addition, it seems it tends to affect AMD gpu's than it does to NVIDIA gpu's. I had a gtx 1050 (with an i7-7700HQ) which did not suffer this problem, but now with my radeon 5500M (and i9-9980HK) it does.
In my opinion, this shouldn't be a low priority issue as it affects greatly the playability of a lot of users and taking in consideration the revamping of the world generation in 1.18, the issue could become more apparent to more players.
Edwin Solis
I have experienced similar results getting worse as I increase mipmap levels to almost unplayable levels. In addition, it seems it tends to affect AMD gpu's than it does to NVIDIA gpu's. I had a gtx 1050 (with an i7-7700HQ) which did not suffer this problem, but now with my radeon 5500M (and i9-9980HK) it does.
I dug up a little, and it seems a common, documented problem (see https://github.com/FTBTeam/FTB-Revelation-2/issues/366, as an example).
In my opinion, this shouldn't be a low priority issue as it affects greatly the playability of a lot of users and taking in consideration the revamping of the world generation in 1.18, the issue could become more apparent to more players.