@theredbearded thanks for letting us know your hardware specs. I will write it down on my notes, just in case someone else posts issues with similar hardware specs, we might start correlating things. My pleasure to help!
Lost some modifications in plugin .py files when updating the preview version (oops), could there be some check that either backs up modified non-binary files (for example .py files) or just doesn’t replace them?
That’s what Source Control is for. 
The week’s still not over but will 4.22 release this weekend, or is it now planned for the next week?
We don’t release over weekends. We never have.
But to answer your question…Soon!
Can confirm. I also was able to easily reproduce this issue (actually haven’t been able to get the issue NOT to occur when using Gradle with NVCodeworks 1R7) and have even included a link to a very simple project where the issue occurs and shared it on AnswerHub (Android App Crashes on Launch UE4.21 (UE-65983) - Mobile - Epic Developer Community Forums) I would really appreciate at least a workaround for this issue; it appears to be related to having a mismatch between different Java runtimes within the build, and I’ve been trying to find a solution myself.
Yeah I expected it not to release on the weekend, epic guys like you guys need rest too 
But I had to ask <3
…and I submitted some crash reports for Preview 7. Might be a preview 8
Hello, ive noticed some oddities with the 4.22(preview 7) in that it seems no matter what i do menu items are disappearing constantly, search bars and renaming items keep clearing themselves and i cant easily navigate levels because left and right-click keep un-focusing(like i released the button when i have not) its not consistent either, but always occurs before like 7 seconds pass. i dont know what this is or how to start debugging this, ue4 is the only one that does this so im more inclined on software than hardware but im not sure
It is interesting to know the following:
- Is this in Windows?
- If above, are you running with -dx12?
- If above, are you running with Raytracing enabled?
- Are your graphics card’s driver updated?
- Are your Windows Updated?
- Are you using the launcher preview or did you build the preview by source?
- Is the project a blueprint or C++ project?
- Which is the version of Visual Studio you have installed?
- If not Windows, which OS are you running?
- Can you provide details about your graphics card model, cpu and motherboard models, amount of RAM and VRAM?
This is already fixed actually, it was an issue with sequencer I believe. You’ll just have to wait for release or use the latest 4.22 build off github.
I can’t seem to get the editor to use my 2070 instead of my 1070. When I remove the 1070 it works fine. I tried changing the adapter and the dx12 adapter in the console from within the engine and also adding lines to ConsoleVariables.ini but it keeps defaulting to the 1070. The 1070 has a few mb more memory so maybe that’s why? I have tried moving the cards around in the slots but still nothing.
Edit: I missed a character in D3D12.GraphicsAdapter in the .ini file… doh! It works now but crashes randomly when trying to rearrange the windows of the ui, which DIDN’T happen when I had just the 2070 installed. Here is the log just before a crash.
I am on preview 7, 419.67, windows 1809 (latest).
-yes,
-how to i check this actually ?
-No
-probably not, i get more frequent crashes with some software if i keep updating things
-probably, windows usually lets me know when restarts are needed
-launcher, i dont know how to do source builds
-blueprint, not a programmer
-2017
-see attatched Image
Oh, cool! though i dont remember ever using sequencer when this was happening, just Niagara and blueprint
@DaDarkDragon Everytime UE4 launches a new release it is an assumption it will work with the latest drivers at launch date (even for previews), so it is not guaranteed it will work flawless in other conditions, even more since this specific release has a lot of changes in the rendering module, which depends on certain things like graphics card drivers and directx version. I suggest to update the graphics card driver going to nvidia website (type nvidia drivers on google) and select your card model (RTX 2080) and Windows 10 64 bit and download the 419.67 release. Also, there is a Creator driver which should improve performance, according to NVidia, for several 3D software (not games) and UE4.22 is among them.
Release today? 
I believe we need another preview. It’ still terribly broken.
What scares me the most is when everything works fine here while a lot of other people keeps reporting issues 
Hello, how did you pack a project with ray tracing?
I don’t know if anyone else is experiencing this but I’m unable to choose the Unreal Engine 4.22.0 option from the top, drop down install menu from within the new, associated Epic Games Installer, as it’s greyed out even though I ran the new 4.22.0 file downloaded. Only the earlier 4.21.2 choice is available and it activates upon choosing it to then bee in Launch status.
Please let me know if I’m missing something obvious. Thanks!
What is a Path Trace option in PostPro for ?
Can I use it w/o RTX card ?
Can I use MS DXR instead RTX for RealTime RayTrace ( I know it would be much much slower ) in UE4.22 ?