Mirror material doesn't show reflections correctly - blender

I hope you all having good day.
To the point, I placed two mirrors, as shown below, but there is something wrong with the reflections, the reflection of front mirror and its image doesn't appear in the left hand mirror. I tried "Light Path" node but it didn't worked. any suggestions, please?
Thank you

I found the cause of my problem, It was the checkbox "Fast GI Approximation" under Light Paths.
I was trying different presets, then suddenly It works, checked that checkbox again, and the mirror is black again.

Related

How to create "menu grid" in kotlin

I have searched google/stackoverflow etc. for answer to my question, but I didn't quite manage to find the right one. I believe I just don't know, how to set the question properly, and thus I cannot find solution.
Is there any way, how to create grid like I drawed in following image (with red colour):
I need to add this red grid to several images, which look very simmilar. The grid field (the one selected) have rolling menu, prescribed position, and a field for additional text. Black lines in background are image in background, and the red supposed to be grid above the image. I thought of creating a lot of buttons alined to each other, but i think that is very bad way to do so.
I would like a pop-up menu from selected field, but opening new activity with same fields is usable aswell. Is there any "simple" solution for creating such grid/menu ?
Btw, I am not programmer with many experience with coding, let's say, I know basics only.
Thanks in advance.

border edge will not disappear

I'm using a really nice third party circular progress bar (installed via nuget & v2.5.6403.13419) Found here that has no border property but it still insists on displaying a top and left hand border artifact as per my attached screenshot (from VS 2017) although in all the examples this is not the case. I can't figure out why this should be and have experimented with every setting I think may cause it to no avail. I've set the forms paint to
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias
but no difference and I've run out of ideas and my searches for anything similar have turned up nothing. Can anyone suggest anything please?

Position of PictureBoxes in form design window do not correspond to their position during runtime

EDIT: I realized that I didn't tag this properly - I should have included vb.net as a tag, on the grounds that there could be a code based solution. Note, that no changes to the resolution are made in my source code.
UPDATE: When the program starts execution, the left coordinate for each PictureBox is multiplied by ~0.376, whilst the top coordinate for each PictureBox.Top is multiplied by ~0.418 . This "down-scaling" applies to all picture boxes. The source code I have is incredibly rudimentary and cannot be responsible for this. I also looked at another project and I still face the same error. A simple but poor fix would be to divide each coordinate by the corresponding values mentioned above.
In order to show you the issue I'm facing, please look at the images below. Compare this image, where each PictureBox (i.e. a snake, set of arrows, etc.) has been placed so that they line up with a feature of the background image:
To this image, where the PictureBox elements are bunched together. Their positions have been "down-scaled" closer to the origin of the form (note that all the elements are transforming horizontally during runtime, which is why the elements are in the top right corner):
In the solution I was given (developed in VS 2010 I believe), the position of each PictureBox goes beyond the background image as shown:
It is clear that each picture box has been placed in an organized fashion. During execution, each PictureBox goes to it's intended position (i.e. lines up appropriately with the background image).
Obviously, the original developer of the solution I was given would have not faced the problem I am. The fact that the solution works properly during runtime indicates some kind of error with my instance(s) of VB. Does anyone know of any solutions?
I've came across this question which asks how to change the default resolution for a Windows 8 App and this question which asks why some applications appear differently on different machines, but they pose no clear solutions. I would appreciate any help, since it's holding me back from critical work I must do. Thank you in advance!
I feel a little silly now - I started carrying out a bit more research on VB forms and came came across this Microsoft documentation on form scaling. Realizing that my issue may have been caused by having this scaling automatically carried out, I then found the AutoScaleMode property of my form and changed it from Font to None, which resolved my problem.

Span Background

I just started at a new job and took over a site from someone who coded a site very strangely. I have figured out most of the issues but have a hiccup that hopefully you guys can help me with.
http://newcombspring.stifel-marcin.com/ is the site. If you go over the Products link you'll see that it drops down and that there is a hover background in place but I can't get a generalized background to show up. I currently have it set to black(#000000) and the only way I've gotten it to work before is by setting both a width and height but as you can see, the different drop downs are different heights so that obviously isn't a solution.
I wanted to see what you guys thought would be the best plan of action on getting this to work correctly.

Gtk Sharp - Treeview nodes will not expand sometimes

Sorry in advance for the vague conditions in which the problem below occurs. It is very intermittent, and I have not pinned down a consistent set of steps that reproduce it yet. (Which is why I'm asking for some general or common things that might cause it)
The application I'm working on consists of MonoDevelop.Components.Docking dock frames. There is a tabbed group of panels in one if the frames, and one of them has a GtkTreeView in it. Every now and then, the nodes of the Treeview will not expand when clicking on the + button. This does not go away until restarting the application.
However, since I have not been able to consistently reproduce it, I'm kind of at a loss of what to look for/mess with to fix it. So does anyone have any ideas on what might generally cause the nodes to not expand when clicked? Or any better steps I should try in order to reproduce it?
I have found this occurs when a disabled node is in the TreeView. In my case it was a project in the solution pad of MonoDevelop that was set to not build in the current configuration. When I removed the project, all other nodes in the TreeView started working again immediately.
You can use the arrow right/left keys to expand/collapse nodes.
It may be related to a Gtk bug:
https://bugzilla.gnome.org/show_bug.cgi?id=675835
which was fixed recently:
http://git.gnome.org/browse/gtk+/commit/gtk?h=gtk-2-24&id=b32a9eb691920f21ad3b9127c833aaba15727c4b