App crash in Rez.mcgen

Hi, my data field has started to crash on some devices (e.g. Edge Explore, Edge 520, 520 plus) after a recent FW update. I don't own any of these devices myself but manage to get the crash log from a user 

The CIQ_LOG shows this:

Error: Unhandled Exception
Time: 2024-05-11T08:00:02Z
Part-Number: 006-B3011-00
Firmware-Version: '5.40'
Language-Code: deu
ConnectIQ-Version: 4.2.4
Store-Id: f7d0d393-70ea-4c5f-83cf-f7d5d0f5ef12
Store-Version: 30
Filename: E57H4321
Appname: ...
Stack: 
  - pc: 0x3000421c
  - pc: 0x30003e34
  - pc: 0x100026d8
  - pc: 0x10001542

The first two addresses (starting with 0x3000) does not point to anything in my debug.xml file. The third address (0x100026d8 = 268445400) can be found in my debug.xml file:

debug.xml file:

<entry filename="C:\\Users\\fsall\\OneDrive\\Garmin\\Garmin Projects\\DexDF\\bin\\gen\\006-B3011-00\\source\\Rez.mcgen" id="39" lineNum="88" parent="globals/Rez/Layouts" pc="268445365" symbol="TopLeftLayout"/>
<entry filename="C:\\Users\\fsall\\OneDrive\\Garmin\\Garmin Projects\\DexDF\\bin\\gen\\006-B3011-00\\source\\Rez.mcgen" id="39" lineNum="89" parent="globals/Rez/Layouts" pc="268445406" symbol="TopLeftLayout"/>

It points to line 88 or 89 in the Rez.mcgen file, which looks like this:

88: var rez_cmp_local_textarea_value = new WatchUi.TextArea({:identifier=>"value", :color=>Graphics.COLOR_WHITE, :width=>(rez_cmp_local_var_dc_getWidth * (100 / 100.0)), :locX=>(rez_cmp_local_var_dc_getWidth / 2) - ((rez_cmp_local_var_dc_getWidth * (100 / 100.0)) / 2), :locY=>(rez_cmp_local_var_dc_getHeight * (50 / 100.0)), :text=>"", :justification=>Graphics.TEXT_JUSTIFY_CENTER|Graphics.TEXT_JUSTIFY_VCENTER, :height=>(rez_cmp_local_var_dc_getHeight * (60 / 100.0)), :font=>[local_Rez_Fonts_RobotoBold60,local_Rez_Fonts_RobotoBold50,local_Rez_Fonts_RobotoBold40,local_Rez_Fonts_RobotoBold30] as Array<Graphics.FontType>});
89:
90: return [rez_cmp_local_custom_drawable_24525874216697440285, rez_cmp_local_text_label, rez_cmp_local_text_message, rez_cmp_local_textarea_value] as Array<WatchUi.Drawable>;

I am using relative layouts with text areas and custom fonts:

Layout.xml:

<layout id="MainLayout">
        <drawable class="Background" />
        <label id="label" x="center" y="15%" color="Graphics.COLOR_WHITE" justification="Graphics.TEXT_JUSTIFY_CENTER | Graphics.TEXT_JUSTIFY_VCENTER" font="Graphics.FONT_XTINY" />
        <label id="message" x="center" y="40%" color="Graphics.COLOR_WHITE" justification="Graphics.TEXT_JUSTIFY_CENTER" font="Graphics.FONT_MEDIUM" />
        <text-area id="value" color="Graphics.COLOR_WHITE" justification="Graphics.TEXT_JUSTIFY_CENTER | Graphics.TEXT_JUSTIFY_VCENTER" x="center" y="15%" width="100%" height="100%">
            <fonts>
                <font>@Fonts.RobotoBold80</font>
                <font>@Fonts.RobotoBold60</font>
                <font>@Fonts.RobotoBold50</font>
                <font>@Fonts.RobotoBold40</font>
                <font>@Fonts.RobotoBold30</font>
            </fonts>
        </text-area>
    </layout>

I have noticed for one device type having the same issue that if I revert back to my old layout, which does not have text areas and custom fonts, the problem seems to go away. I use the old layout style with devices that does not support text-areas (pre 3.1.0). But the Explore is on 3.1.0 and should support text-areas, accoring to this page: https://developer.garmin.com/connect-iq/compatible-devices/  And it used to work, until the latest software update. 

Is this a CIQ bug that got introduced with the last device software update?? Or am I doing something wrong? 

Cannot reproduce in sim, and problem exists only on a few devices. (all devices having issues seem to be 3.1.0 devices)   

Thanks! 
/fredrik