I have(had) a working home automatization containing a Tradfri Gateway, ~15 lamps in two rooms, 2 power outlets, a serial interface connected to the HiFi. Everything was working fine until yesterday. Since yesterday, only the Ikea power outlets and the serial interface is working. The lamps do not react any longer (but still can be controlled by the Ikea remote control). The only thing I could figure out was that Ikea did an Update to Version 1.15.1 on 2021-02-09. Can somebody confirm that the latest firmware is compatible with openHAB?