Weird Visual Glitch, Prevents Development

[ian.yeager]

I've got a weird visual glitch on my G Web Development Software that's preventing me from doing development. Essentially, anything I put down on the front panel becomes invisible. It doesn't matter what kind of control, or if it's just a text box. I can see it when I'm placing it, but as soon as it loses focus, it's no longer visible. If however, I save the .gviweb, close the project, then reopen it, everything is visible and appears correctly, however, new changes will again not be visible and all the "as-saved" behavior will persist until I save it, close it, reopen it. 

The code side of things works 100% as expected. I'm able to wire things up, write functional code, write comments, etc... When I attempt to run it in the IDE however, it only displays a blank screen. Doesn't matter how or what I order I run things, always a blank screen. However, if I Run In Browser it appears visually and functionally as it should.

This is the only computer I've experienced this on. I've uninstalled all NI products from the laptop completely, including hidden National Instruments folders, Reg keys for NI and Erlang, etc... three times and have reinstalled just G Web Development Software and the required dependencies. No luck. I can load projects created on other computers with no issues and things will appear correctly when loaded, until I modify the front panel and then things get all messed up again. 

I've attached some screenshots to try to visually show it. 1 and 2 show a text box being placed, and then how it looks after I lose focus. 3 shows the same thing happening with a String control. 4, 5, and 6 show how it saves things appropriately, but I get a blank screen when running in the IDE despite it running fine in the browser. 

Any ideas would be helpful, it's a pain to have to develop on some other PC then transfer back to my LabVIEW PC for integration testing and then back to another PC if I need to make changes. 

[jvon20]

That's weird and frustrating. Does the problem computer meet the minimum requirements for running G Web? https://www.ni.com/pdf/manuals/378578a.html#requirements

[bhpowell]

I hate to say it, but it reeks of a graphics driver problem.  Have you checked Windows Updates, as well as your computer's manufacturer's website for updates?

What kind of computer is it?  I used to use a Microsoft Surface Pro 3, which had a notoriously bad video driver for its Intel graphics chipset.  I would override the Microsoft driver and install the Intel one.

[Jens_S]

I'm a bit late to the party but it might help others. I ran into the same problem and after trying out a lot of stuff I figured out that the corporate proxy we use is causing the problem by somehow blocking the access for the G Web IDE to the local webserver.

The panel view in G Web is using ChromiumFX to show the preview of you web VI and this build in browser seems to use the system proxy settings which might cause the problem.

Edit:

To test this open the webVI in G Web and switch to the panel view. If you only see the white background but can hover over the elements (blue lines around them) try to disable the system proxy or add a rule to ignore localhost/ 127.0.0.1. After changing the settings you need to close the webVI in G Web and open it again.