Just a quick note on recent TASMOTA changes. Theo has been pushing out some updates over the past couple of days to fix an intermittent stack overflow problem which has cropped up with some combinations of hardware and TASMOTA firmware. The issue seems to manifest itself with TASMOTA versions 6.4.1.16 and 6.4.1.17 and some devices which do load current monitoring (eg:- the NX-SP201 series, double-outlet smart switches). Initial indications are that executing a “status 0” command at exactly the same time as the current monitor is updating can run the device out of stack space.
Bottom line… update to release of 6.4.1.18 (or greater) if you’re seeing these symptoms.
esp8266hints 