Shelly scenes and mesh problem

Hello Forum,

this is my first message. I just installed several shelly Plus 1 that are controlled with physical push buttons and with Plus I4 in different room. My wifi network is provided with TP-Link M4 mesh system, no other networks are set in the house. My scenes to turn the relay output ON and OFF are also well defined, they work each at a time. The command with the push button is also fine, no faults. My major problem is that when both scenes to turn On and OFF the relays are enabled, the lights go ON/OFF for 4 or 5 times before they eventually stabilize. This process lasts for several seconds, lights go ON then OFF then ON... very very annoying. I tried multiple configurations on my TPLink mesh network, enable/disable roaming, beamforming, etc... but nothing seems to solve the issue. I see that Shelly's are connected to multiple repeaters, is this the problem? I will try to disable all wifi repeaters except for the main, with all shellys connected to the main device maybe it all works well?

Is this a know problem? What is the best way to debug the problem?

Thanks!

I did not check that ahead but none of my network devices are included in the list, which makes the problem more weird. The anoying part is that installation took a breeze, but setting the system up is taking many hours of frustration...

Everything works within the app, the scenes work normally. Once the button is pressed on plus I4 the cycle of lights ON OFF start and I don't manage to solve it.