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I think something might have gone wrong with mouse controls. I can't seem to drag components to move them - dragging seems to be stuck in a mode where it selects with a bounding box.

In simulation mode, clicking nodes does nothing.

Chrome seems to work ok - so this might just be an issue with Brave browser.

The situation I encountered is that the CHROME browser cannot move the part symbols, but the EDGE browser can. How can I fix this? I have already updated CHROME to the latest version.

New user here - I am using Brave, a Chrome derivative, and while I was on the free plan, everything worked. I upgraded to a paid plan and ever since then left-click and drag only draws a fine red selection box. The right-click context menu still works but I can't move components nor connect them.

I cleared browser cache and cookies for circuitlab.com and no change.

Edge isn't something I plan on using for anything.

Update to my prior post.

The component move behavior worked fine with Brave 1.85.120. When Brave upgraded to 1.86.139 component move behavior broke. I confirmed this on two different PCs. I removed 1.86.139 and reverted to 1.85.120 and component move behavior is now ok again.

Circuitlab is stuck in simulation mode as described in the posts above with component move behavior broken, using the latest Edge and Chrome versions.

Ya, I'm seeing the same incorrect behavior when using Chrome. For now it is working using Edge. I can deal with that for now. Does anyone from CircuitLab ever respond in this area, or are we subscribers left to chat among ourselves?

I am having the same issue, can't drag components or make new wires from circuit nodes without seleceting the "wire" componenet.

Given both Brave and Edge are Chromium derivatives, Edge on next update may break as well.

With Brave, there's no configurable toggle to not auto-update so you are left disabling the Brave update services via services.msc. Somehow even with that off, it managed to download the current version - which I deleted before it got installed. Not a sustainable process.

I too wonder whether CircuitLab staff monitors this forum. The forum's stated purpose is "Troubleshooting and bug reports". This certainly seems like a bug with Chromium they need to create a workaround for.

I am having the same issue of not being able to move components and not able to connect them on a existing circuit. For some reason, older simple schematics can be edited without issues.

I am having the same issue. I am a paid subscriber. I use this program every day for drawing circuits to present to my Engineering class. I need this updated ASAP! I can't use the program. Will circuitlab admins please respond?

Hi all, thanks for the bug reports! I was able to reproduce similar problems with Chrome 144 that were not present in Chrome 143.

We've just deployed a workaround! If there are any edge cases we missed that are still broken, please let us know. (Please include your exact browser version and OS.)

We're continuing to investigate, but so far, it looks like Chrome 144 broke the processing of mouse events in SVG-driven applications like CircuitLab in some situations. We may try to make a minimal reproducible test case and file a bug with the Chromium project, but for now, I believe we've worked around most or all of the impacted mouse events.

If you continue to experience any related issues, please:

1. report them here on our forums, and
2. try using a different browser, such as Firefox

Apologies for the issues, and thank you for your patience!

Thanks Mike, that resolved the issue on Brave 1.86.139 (based on Chromium 144.0.7559.59).

For others waiting for this fix, note that you need to refresh any open CircuitLab editor windows in order to bring in the new code.