still no fix for https://answers.unrealengine.com/questions/726508/cascade-modules-extremely-small-on-4k-screen-in-41.html 
guess I’ll need to tell my clients to still not move to 4.18 
ARKit still not updated. 
@**Shadow.Storm
Updating to 4.18.2 has broken my project it says the map was saved with a newer version of the engine coming from 4.18.1.
EDIT
I fixed this by using a autosave of my level. **
Updating to 4.18.2 has caused my level to recompile 128,000 shaders on opening the map every single time. I didn’t have this problem on 4.18.1
Hi,
just updated to 4.18.2 from 4.18.1. Everything works fine and after all the materials updated, i save the work. Then when i close the editor and open the project again, all the materials have to be updated again. It will take again 15min for 30.000 and after all is done it looks like it should. But then again, when open the level again the materials where not saved before. If i want to render out a sequencer animation, i have the problem too. The materials are not updated and skylight is wrong and the whole scene is too dark… not in the editor after updating the materials, but it is not saved…oh noooo…please help or update. Thank you.
Hi,
me too. 
There must be a bug or something has changed drastically. We have to wait.
Hi,
I’m trying update to 4.18.2 from 4.18.1 and I can’t do it. Error code IS-MF01-183? Any help with this?, I made the project in 4.18.1 and I can’t to access in any way.
How can install previous version 4.18.1 with not updates?, I can’t find the way (always appear update)
Thanks
**Mugoo **and **mk010769, **I tried opening some of our sample projects in 4.18.2 (Realistic Rendering, Sun Temple, Elemental Demo, etc.) and after the shaders compile the first time, opening the projects again does not result in the shaders needing to be compiled again.
Are you able to provide some instructions for us to reproduce the on our end?
Hi,
hm nothing special done… I opened the project direct from the epic games launcher. In the settings i have enabled “load default map”, so the editor starts with a level map i created in 4.18.1.
After the loading is finished, i wait till all materials are updated and then save the level. I close the editor and reopen my level from the games launcher again. It loads my level but then has to recompile all materials again… same procedure everytime i start with the level…
I’m having the same (or possibly just a similar) issue on my project. For me, whenever I load a level with a landscape all the landscape shaders need to be recompiled. I don’t even need to close the editor, just go to a different level and back again. I was hoping the Boy and His Kite sample would have the same but no luck. Working on stripping out most of the content from my project so I can post it with a bug report on the AnswerHub.
Hi,
I really appreciate the hotfix since it seems to have gotten rid of “UE-53126 Unknown by landscape material warning logspam when launching onto Android/HTML5/iOS/tvOS” which has been quite a headache ever since we upgraded the project to 4.18.
However, right after upgrading the project to 4.18.2 from 4.18.1, whenever we build or cook it, we get a “DerivedDataCache is too slow when accessing…” when cooking uassets and and the process just hangs in there for ever (or for at least 2 hours, which is the most I have wait for since the started) - I posted a related, more detailed question in the answerhub as well.
Any sort of input, help or advice would be greatly appreciated.
Thank you.
It seems 4.18.2 doesn’t load the cached data from 4.18.1 instead it thinks you wiped out your save and goes ahead and recompiles the lot lol.
I clocked loading times on my maps. 4.16 loads the map in 5 seconds while 4.17 and 4.18 take 14 seconds. That is quite the difference.
Any ideas why this is? Is it because of the changes in 4.17’s Asset Registry?
Not sure what’s causing the slowdown, but… this was submitted to main branch few days ago.
For those having this with the shaders compiling, try deleting the folder **AppData\Local\UnrealEngine\Common\DerivedDataCache **.
I’m having a performance bug in the editor when I open menus or editor windows (mesh editor, mat editor, mat instance editor, etc). I created a report here. Anyone know of a solution or have something similar?
So good! Can’t wait to mess around with the new update!
This worked for me at least. Thanks.
Thank you, , for your perfect support. It helped to delete this folder. Now everything is working fine with 4.18.2. and i can continueing my work. I am using UE4 now every day and learn it better and really like how it is growing and so many good games and animations are done with epic´s unreal engine. A nice christmas time for you and the team. ,-) greetings from germany.
That’s great, I’m glad to hear this solution worked!