Gaps in fit file

My Edge 540 sometimes freezes during activity (5 to 10 seconds).

During this timeframe, no data is recorded in the fit file (see example, timestamp 4263 jumps to 4284 without pause - but there are other examples in the file).

Is it just my device or is it a software issue ? i remember posting something similar in the past.

https://ibb.co/0jj7PsX2

19322930281.zip

Thanks a lot,