For anyone new to a month where the number barely moves: this comes up here a lot, and it usually says less than it feels like it does. Weight is not a straight line. Salt, sleep, a cold, hormone cycles, digestion, and training can all hold the scale in place while other things are still changing.
The older threads tend to point the same way: look at a four-to-six-week average, not one date. My own last quiet stretch was a four-week run where the morning number sat within a pound, but my usual two evening walks had become five. Nothing dramatic, just a reminder that the scale is one noisy instrument.
If the routine is still mostly intact, a flat month is often a pause in the data, not a verdict. What do you all check first when the number goes quiet?