Namron 3 wire dimmers stuck on

All wallswitches in my house are impulse, connected to Namron 3 wire dimmers.

3 of them are now stuck on.
They do not react to wall switch.
Homey app says timed out when trying to control them.

Not able to remove from Homey, because light switch presses do nothing.

Any tips?

Any more information would be appreciated.
Homey version (software)
App (Namron) used, version?
Did you already reset your Homey.
Did you try a PtP? (Pull the Plug for at leasr 10 minutes)

Homey Pro early 2019
Ver. 6.1.0
App version

Namron app 2.1.14

Pulling the plug on Homey, and then switching off the circuit breaker for some minutes resets the Namron.

But the problem comes back after a little while sometimes in minutes, sometimes hours. It seems to affect all the Namron dimmers, at random.

I have not reset the Homey yet, as there’s quite a lot of devices to re-add…

No problem with other z-wave devices, running 7 heat-it TRM3, 4 fibaro smoke detectors and a roller shutter 3.

Then I can’t help you.
Maybe someone else of the community can.