Change Axis labels on Line Chart

I have a couple dashboards with month numbers instead of month names as the x-axis labels, and I modify the numbers to month names with the following script. It works when I am editing the widget, but in my dashboard it works very briefly then goes back to showing numbers. 

widget.on('domready', function(widget,args){
 var monthDict = {
  1: 'Jan',
  2: 'Feb',
  3: 'Mar',
  4: 'Apr',
  5: 'May',
  6: 'Jun',
  7: 'Jul',
  8: 'Aug',
  9: 'Sep',
  10: 'Oct',
  11: 'Nov',
  12: 'Dec'
 }
 widget.queryResult.xAxis = {
     categories: widget.queryResult.xAxis.categories,
     //Runs every value in the category through this function 
     labels: {
         formatter: function () {
          return monthDict[this.value]
         }
     }
 }
})

 I suspect it could be tied to our tabber widget we use as each of these charts are on a different tab. The tabber widget uses the following script. 

Is what is causing this issue that they both use 'on render' actions and how could I get around it? Thanks!

/*
Welcome to your Widget's Script.

To learn how you can access the Widget and Dashboard objects, see the online documentation at https://sisense.dev/guides/js/extensions
*/

let awarenessDict = {
	header: "6320975ac5f4330037f5e20e",
	vis_per_week: "6320967dc5f4330037f5e205",
	avg_usr_top: "63330ec1c5f4330037f5f5cf",
	tot_pg_views: "63346af4c5f4330037f5f759",
	pg_views_by_usr_type: "63346ac3c5f4330037f5f757",
	home_pg_views: "63497108c5f4330037f608b1",
	lesson_pg_views: "6349710fc5f4330037f608b3"
	};

let acquisitionDict = {
	header: "63209795c5f4330037f5e210",
	new_regs: "63209d90c5f4330037f5e220",
	new_prem_subs: "6320bf31c5f4330037f5e23e",
	anon_to_reg_to_sub_conv: "63333ba7c5f4330037f5f637",
	tot_reg_by_ref: "63333763c5f4330037f5f5eb",
	tot_regs: "63333794c5f4330037f5f5ed"
	};

let engagementDict = {
	header: "632097a1c5f4330037f5e212",
	trials_w_prem_act: "63224911c5f4330037f5eaf7",
	perc_prem_usr_act_cont: "632a3794c5f4330037f5f1a7",
	trial_usr_sched_adop: "63348834c5f4330037f5f79c",
	perc_trial_w_sched: "6334886cc5f4330037f5f79e",
	perc_prem_act_notes_and_vid: "633ef370c5f4330037f5ff81",
	perc_prem_act_notes_and_vid_and_other: "634495f3c5f4330037f60480",
	perc_prem_act_combined: "63449704c5f4330037f604a5"
	};

let valueDict = {
	header: "632097a5c5f4330037f5e214",
	upsell_subscribers: "633f3fecc5f4330037f6016b",
	upsell_subscribers_perc: "633f4015c5f4330037f6016f",
	avg_sub_val: "6345c90ac5f4330037f605ee"
	};

let retentionDict = {
	header: "632097a9c5f4330037f5e216",
	new_trials_by_ret_status: "63209dc1c5f4330037f5e222",
	sub_net_churn_monthly: "63458007c5f4330037f604ae",
	sub_net_churn_ytd: "634581f0c5f4330037f604b2",
	avg_sub_len_trial_vs_non: "633ef4c8c5f4330037f5ff8d",
	churn_monthly: "634ee562c5f4330037f60c13",
	churn_perc_monthly: "634ee5a4c5f4330037f60c17"
	};

let awarenessDictArray = Object.values(awarenessDict);
let acquisitionDictArray = Object.values(acquisitionDict);
let engagementDictArray = Object.values(engagementDict);
let valueDictArray = Object.values(valueDict);
let retentionDictArray = Object.values(retentionDict);

let awarenessDictHideArray = acquisitionDictArray.concat(engagementDictArray, valueDictArray, retentionDictArray);
let acquisitionDictHideArray = awarenessDictArray.concat(engagementDictArray, valueDictArray, retentionDictArray);
let engagementDictHideArray = awarenessDictArray.concat(acquisitionDictArray, valueDictArray, retentionDictArray);
let valueDictHideArray = awarenessDictArray.concat(acquisitionDictArray, engagementDictArray, retentionDictArray);
let retentionDictHideArray = awarenessDictArray.concat(acquisitionDictArray, engagementDictArray, valueDictArray);

widget.on('render',function(w, e){e.prefixText = '';
			e.suffixText = '';
			e.selectedColor = '#0074e6'; /*The color of the chosen title*/
			e.fontColor = '#7f8d9a'; /*The color of the unchosen titles*/
			e.elementWidth = '103%';
			e.descColor = '#a5a5a5';
			e.parentMarginLeft = '-15px';
			e.height = 32; /* affects the tabber widget default high*/
			});
widget.tabs = [{title: "Awareness", displayWidgetIds : awarenessDictArray,
			hideWidgetIds : awarenessDictHideArray},
			{title: "Conversion", displayWidgetIds : acquisitionDictArray,
			hideWidgetIds : acquisitionDictHideArray},
			{title: "Engagement", displayWidgetIds : engagementDictArray,
			hideWidgetIds : engagementDictHideArray},
			{title: "Value", displayWidgetIds : valueDictArray,
			hideWidgetIds : valueDictHideArray},
			{title: "Retention", displayWidgetIds : retentionDictArray,
			hideWidgetIds : retentionDictHideArray}
		];