There is no science to support the carb-insulin model which is at the core of the low carb.
When put to the test - as in lock people for four weeks in a clinic and have them eat low carb or low fat - people on low carb did actually lose less body fat and lost more body water and lean mass. This is important because after menopause, it is important to maintain muscle and the tests show you lose more muscle on low carb than low fat.
What truly made a difference is level of processing in food.
The dude that locks people for a living and tests them on diet at the NIH in the US presented a summary of his research at a diabetic conference and the video is quite factual . It is quite telling and puts the science before the hype.
How you do low carb, what you actually eat, can drive inflammation up if you have a lot of meat, processed meat, dairy instead of avocado, nuts, and inflammation makes losing weight more difficult. Do you know roughly how many calories you are eating per day?
Try to increase the amount of fresh food, mainly vegetables, add seeds such as linseed for example. If low carbing doesn't work for you, try the DASH diet for a few weeks.