Problem with all apps deleting

but earlier versions didn't

Running process.memory() or process.memory().free before each app upload might also provide a clue. Although the value will be different for each device based on the actual apps loaded, my experience is that when approaching a value around 150 JsVars or less, one may start to notice issues. Versions of Espruino after 1V95 or thereabouts did start reporting LOW MEMORY warnings.