Thanks for your prompt reply!
I’ll try Lectrote and report here, but so far I’ve had no problems whatsoever with any interpreter, either executable, JAVA or browser based.
This is a first and since it’s also my first attempt at creating an Android apk, I’m not surprised that there is a learning curve 
I can certainly wait for a few days to see if it’s addressed in a Parchment update… but I’m sure that is more a problem of my lack of experience at building Android apps rather than a Parchment problem, per se.
BTW: If anyone already has a template of files/folders working for building Android apk from HTML with Parchment, I’d be most grateful if they could share it here (say, as a .ZIP file). Note that I’m trying to build from an HTML page that already works with Parchment and a StoryName.z5.js story file: this is for an Inform 6 work, not an Inform 7 project; the Inform 7 solution (as far I understand it) it’s addressed here.