Blur effect not applied when using multiple monitors

[Herrox]

Describe the bug
Blue effect is not applied to top panel when using multiple monitors.
I'm using dash-to-panel, when using only my laptop (so only laptop monitor) blur effect is correctly applied to the top panel + activities.
When connecting a second monitor to my laptop blur effect is not anymore applied on the top panel on both screens (laptop + second monitor) but works for activities

Expected behavior
Blur effect applied to top panels on all the screens.

Configuration (please complete the following information):

• GNOME Shell version 3.36
• Ubuntu 20.04
• Xorg session
• apt update indicator, bluetooth quick connect, clock override, dash to panel, places status indicator, spotify controller, tweaks & extensoins in system menu, ubuntu appindicators, user themes, window is ready - notification removier, workspace indicator

Screenshots

Additional context
Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Intel Corporation UHD Graphics 620

I tried another blur effect extension and behavior is the same, so not sure if it's related to the blur extension or directly to dash-to-panel.

Cheers!