Affected hardware version

Bangle 1, Bangle 2

Your firmware version

2v27

The bug

I'm trying to create an app that needs the ability to see any sleep status changes, and there is a built in way to do this in sleeplog using triggers. However, with that implemented, and logging for it set up, it always returns undefined for the prevStatus object, which is quite frustrating for me. In the source code for sleeplog, I can see that it returns undefined if the status is the same as the last one, however, for me, the status changes but still returns undefined. Here's the code I use to set the trigger in a boot.js file, any help is appreciated!

Trigger code:

// first ensure that the sleeplog trigger object is available (sleeplog is enabled)
  if (typeof (global.sleeplog || {}).trigger === "object") {
    // then add your parameters with the function to call as object into the trigger object
    sleeplog.trigger["sleepsummary"] = {
      onChange: true,   // false as default, if true call fn only on a status change
      from: 0,           // 0 as default, in ms, first time fn will be called
      to: 24*60*60*1000, // 24h as default, in ms, last time fn will be called
        // reference time to from & to is rounded to full minutes
      fn: function(data, thisTriggerEntry) { 
      
       //Run code here

   logNow("checked, prev status: "+data.previousStatus+", current status: "+data.status+", promptLastShownDay: "+require("sleepsummary").getSummaryData().promptLastShownDay);
      
      let today = new Date().getDay();
      if(require("sleepsummary").getSummaryData().promptLastShownDay!=today){
        if (data.status==2&&(data.previousStatus==3||data.previousStatus==4)) {
          var settings=require("sleepsummary").getSettings();
  
          //woke up
          if(settings.showMessage) showSummary();
          logNow("shown")
          require("sleepsummary").recordData();
        }
        
      }
        
      
      
      } // function to be executed
    };
  }

Installed apps

widlock (0.08), notify (0.14), boot (0.66), alarm (0.52), mylocation (0.11), clkinfosunrise (0.05), worldclkinfo (0.01), kbmulti (0.09), tictactoe (0.03), stacker (0.03), f9lander (0.04), reply (0.03), messages (0.67), locale (0.20), files (0.08), calculator (0.08), widbthide (0.01), chess (0.06), loadingscreen (0.01), kineticscroll (0.05), clkinfocal (0.05), widanclk (0.03), barometer (0.04), 2047pp (0.04), clkshortcuts (0.01), astrocalc (0.09), zambretti (0.01), themes (0.01), qmsched (0.10), widbattpwr (0.03), clkinfostopw (0.03), wid_edit (0.05), guitar (0.03), clkinfosec (0.02), taglaunch (0.08), myprofile (0.02), clkinfodist (0.01), autoreset (0.02), activityreminder (0.12), swatch (0.07), stlap (0.04), ctrlpad (0.02), setting (0.81), health (0.37), backlite (0.02), powermanager (0.13), magnav (0.07), ios (0.21), banglexercise (0.06), modclock (0.05), clock_info (0.20), antonclk (0.12), tinydraw (0.04), textfacts (0.02), messageicons (0.10), messagegui (0.89), weather (0.31), thermom (0.07), meridian (0.01), inspire (0.03), lato (0.04), bordle (0.04), sched (0.35), fileman (0.04), widmsggrid (0.07), sleepsummary (0.01), messagesmusic (0.05), smartbatt (0.03), smpltmr (0.12), slopeclockpp (0.12), clockbg (0.08), pebblepp (0.12), drained (0.08), sleeplog (0.22), popconlaunch (0.05)