Migrate from zigbee2mqtt to ZHA with sonoff bridge

I’ve moved form zigbee2mqtt dongle to a Sonoff Bridge flashed with tasmota.

When trying to re pair the xiaomi devices they show as

Skip initialization for existing device 00:15xxxxxxx

In the logs, when trying to add the device. How can I re pair the devices?

Same question here.
I have actually more issues with ZHA…
Tried the ConBee II, but lost my devices at some time.
Now i’m running also with the reflashed Sonoff ZB Bridge… but also there lost my IKEA button.
Replaced battery… no luck… Then i removed it and am trying to add it back but keep getting the same messages.

Tries remaining: 1
[0xdf1f] Extending timeout for 0x11 request
Device 0xdf1f (68:0a:e2:ff:fe:1a:ef:62) joined the network
Skip initialization for existing device 68:0a:e2:ff:fe:1a:ef:62
Device 0xdf1f (68:0a:e2:ff:fe:1a:ef:62) joined the network
Skip initialization for existing device 68:0a:e2:ff:fe:1a:ef:62
Device 0xdf1f (68:0a:e2:ff:fe:1a:ef:62) joined the network
Skip initialization for existing device 68:0a:e2:ff:fe:1a:ef:62
[0xdf1f] Delivery error for seq # 0x11, on endpoint id 0 cluster 0x0005: message send failure
Failed ZDO request during device initialization

don’t know how to get it back.
When i switched over to the Sonoff ZB Bridge i’ve removed the zigbee.db first.
I’m not willing to do that this time (loosing everything again).