"An unexpected error has occurred" around Revenant's Toll since patch 2.4 udate

When I am in Revenant's Toll, especially in EU evening (9PM-2AM), I tend to get some extreme game freezing. Not lag as everything goes. I cant type, move or anything. Music stops but natrual sounds like talking and voices play and then it comes back. Always and only in or around Revenant's Toll and ONLY since the 2.4 patch update. Before, no issues.

And after a few of these issues I get the following message:

"An unexpected error has occurred. Exiting FINAL FANTASY XIV: A Realm Reborn.(1)"

Anyone else experiencing this?

What do you play on? Might be due to the numbe of people that came back for 2.4 and majority of them do hang around Mor Dhona.

I am a PC player. I play generally on Maximum settings but Standard Laptop (the lowest on my preset list game gives) makes no difference.

Windows 8.1.
Intel Core i7-4790
16GB RAM
Radeon R9 270

There was more people in Limsa than Rev's Toll at points but I get crashes in Rev's Toll and seen none in Limsa.

Yup... Radeon

known issue, turn on occlusion culling and lod streaming and harass AMD until they fix the issue.

Thank you for the advice! I'll get onto them. :3

EDIT: Not had a crash so far. I will start begging AMD to look into the issue. Thanks!