Thank you very much, we are waiting for updates )
āMobile rendering improvementsā - 4.25 have a crash on Android as soon as we using any number of Custom Data on Instance. Hope this will be fixed?
The physics is totally glitched ! My project is based on physics. Iām very scared about Chaos ā¦
Even a simple Skeletal Mesh who simulate physics is terrible.
Constraints doesnāt works any more ( Constraints on mesh details )

I was using 4.24 for a long time now and was pretty happy with it but i decided to give 4.26 a try because of gpu lightmass, some of the things iām saying might be changes from 4.25 that i donāt know about.
I canāt disable realtime viewport, the checkbox is disabled! there is a new button ādisable realtime overrideā and it doesnāt do anything.
PlaceActor window doesnāt show up with hotkey!, i always closed the Modes\PlaceActor window and used shift+1 hotkey to open it up when i need to add a new light or actor to my scene but now it just doesnāt work, i should either leave the window open or go to menus everytime to open it up.
How to make a characterās hairstyle collide not only with the character but also with other characters and objects? It is very annoying that the strands fall into the meshes and underground!
The bug report seems to be broken, so hereās the report here - setting AO intensity to 1 disables sky lights.
because i donāt see it in 4.26 or it is broken?
thatās one of Ryan Brucksā experiments. itās been there for 2 or 3 UE4 releases and some of it derivated into the new Water plugin, but thatās really not it
Its by default built in now, launching its going to be chaos unless you specifically use the physx interface override instead, its also very very unstable currently as its still being heavily iterated on (from git commits). Kind of surprised that 4.26 P1 was put out before some more polish passes on it tbh, guess its going to be a long series of previews.
oohh it might mean Chaos (the physics engine) is there and replacing PhysX but maybe Chaos Destruction isnāt there. to get Destruction you need to activate a plugin, so maybe thatās the missing part. or maybe indeed the Destruction still needs a custom engine build
How would you re-enable PhysX? Found PHYSICS_INTERFACE_PHYSX definition in the code⦠Hope it doesnāt require a custom built engine.
Hey thereās no 4.26 option in the dropdowns for bug reporting on either the public submission page or UDN (unsure if itās normally there before actual full release or not). Should we be using N/A for now and put 4.26p1 in the title or something? Ex. https://udn.unrealengine.com/s/questā¦L00004nVOBpSAO
Will there be any media framework updates with release at all?
Or all towards 5.0?
those are compile defines, so yes that will require a custom built engine
I think Chaos replacing PhysX is great! But I see many bugs right now: physical handle component is broken, attach/detach physics actors is broken too, etc. I made a twitter thread of what I found so far, with videos: https://twitter.com/games_inu/statusā¦35036509368320
Btw, the project is just the third person template from launcher, no change to anything in project settings/editor settings.
When searching for the new water stuff under āPluginsā I (for the first time) noted the āVirtual Heightfield Meshā plugin? Is that new? What does it do (couldnāt find any documentation)?
Hello,
Fog on hair is still not working like in 4.25.x, hope it will be fix soon.
Does anyone have this problem ?
No, Chaos destruction is on Preview version. And itās work. Not really well, but itās works.
( And itās activated by default )
(edit: found it, it is in a separate plugin named FullBodyIK)
Where is the new fullbody IK controlrig node? I searched several variations and couldnāt find it:
Well, new chaos clothing made my clothes behave really weird. And i donāt see any way to switch to old cloth simulation. Nice one unreal.