Occasionally, the screen flickers when the cursor over a signaled machine

Thanks for the report.
Does the flickering happen only while moving the cursor between entities, or does it also happen while keeping the cursor stationary over a single entity?

If it only happens while moving between entities, the window may briefly disappear when no entity is selected, which is currently expected behavior. If it also happens while stationary, I'll investigate it as a bug.

When the cursor moves and a flash is triggered, the window will keep flashing even if the cursor remains stationary afterwards

You can try moving the cursor to the machine with a signal. It's very easy to reproduce the bug. After a bug occurs, even if the cursor remains stationary on a machine with a signal, the window still keeps flashing

Thanks for the additional information.
I understand the issue now. If the window continues flashing while the cursor remains stationary over the same entity, that's definitely not the intended behavior.
Unfortunately, I haven't been able to reproduce it on my side so far. Could you provide the following information? * Factorio version * Whether this also happens with only Hover Circuit Signals enabled (without other mods) * If possible, a short video showing the issue
That should help me narrow down what's causing it.

Sorry, I've enabled an excessive number of mods, so I can't pinpoint the exact cause.

Even after enabling just the original version, DLC, and this particular mod, I still couldn't replicate the bug. It appears to stem from a mod conflict.

Thanks for the information.
I wasn't able to reproduce the issue on my side, but I made a small change to make the GUI more tolerant of temporary circuit-signal read failures that may occur in heavily modded environments.

I tested the change and confirmed that it doesn't affect normal behavior on my side.
If you have a chance to try the next version, please let me know whether the flashing still occurs.

I've already updated to the latest version, and I will reply if similar issues arise.

Thanks! Please let me know if it happens again.