Zigbee value updates in RPi 64bit

I currently run two test systems for trying things out. One is a RPi 4, 64 bit with current versions 2026.3.2 of HA and 2.9.1 of Zigbee2MQTT and the other an RPi 3, 32 bit with the newest available versions HA 2024.9.3 and Z2M 1.40.1.
On the old system a Zigbee thermometer with humidity updates every two or three minutes, often with very small steps. On the new system new values come about half an hour or more apart with huge steps of 0.2 K. It is not the thermometer itself, I swapped them over.
How can I make the new 64 bit system behave like the old and give me all new values as they come in?
Danke
Axel

Check the Reporting tab in the device page for your old install. Maybe the old version set this up automatically & the new version isn’t doing that.

Thank you. You mean in Z2M, right? The values for “min rep interval” and “min rep change” are identical in both, 30 and 20 respectively. No units given for either, I assume seconds for the the interval, no idea about change. In “settings (specific)” the precision is 3 for the new and 2 for the old version, so if anything the new should report smaller steps.