Sparse data provisioning from ESPHome (dallas)

Several DS18B20 temperature sensors are connected to an ESP32 module, which is located next to my wifi router (very reliable connection). The ESP32 is flashed with ESPHome and connects to the sensors via “platform: dallas”. I receive data on discrete time instances. However, on these time instances, it is very random (uncorrelated) which sensor give data and which don’t. This sparsity of data provisioning sometimes wrongly triggers automations linked to these sensors. All sensors are identical (ordered together, same cable length, …).
Any idea why the data is not provisioned consistently over time for all sensors? Thanks!

No idea at all without seeing your esp device config.