Periodic Signal K sensor freeze

[Spark]

I reinstalled the entire system from scratch to solve a periodic freeze issue that previously affected both BME280 and ICM-20948 data streams.
However, the issue is still present even on a completely minimal setup.

System:

• Raspberry Pi 4
  
• Latest OpenPlotter (Bookworm based)
  
• Signal K server
  
• Node.js v22.22.2
  
• Only I2C, serial port and serial console enabled
  
• Only one sensor configured: BME280
  
• No pypilot installed/configured
  
• No external integrations running
  
• No additional Signal K plugins enabled (default plugins only)
  

I also completely disabled the Signal K set-system-time plugin because in the past it caused periodic spikes/problems on ICM-20948 sensor data.

The BME280 data periodically freezes for ~30 seconds and then resumes automatically.
The freeze repeats continuously with a very regular pattern.
During the freeze:

• Signal K timestamps and values stop updating
  
• Data resumes automatically after ~30 seconds
  
• No crashes or visible errors appear in Signal K logs
  

Since this also happens on a completely fresh minimal installation with only a single BME280 sensor, the issue does not appear related to plugins, integrations or previous configuration state.

I enabled debug mode, opened a terminal and manually started `openplotter-i2c-read`.
But it crashes with an `IndexError` because it expects `sys.argv[1]`. Tried running openplotter-i2c-read 0 - no output.

Any suggestion or help would be greatly appreciated.