diff --git a/browser/src/GenePage/GenePage.tsx b/browser/src/GenePage/GenePage.tsx
index 621c982a8..7acae6e37 100644
--- a/browser/src/GenePage/GenePage.tsx
+++ b/browser/src/GenePage/GenePage.tsx
@@ -2,7 +2,7 @@
 import LeftArrow from '@fortawesome/fontawesome-free/svgs/solid/arrow-circle-left.svg'
 // @ts-expect-error TS(2307) FIXME: Cannot find module '@fortawesome/fontawesome-free/... Remove this comment to see the full error message
 import RightArrow from '@fortawesome/fontawesome-free/svgs/solid/arrow-circle-right.svg'
-import React, { useState, Dispatch, SetStateAction, useEffect } from 'react'
+import React, { useState, Dispatch, SetStateAction } from 'react'
 import styled from 'styled-components'
 
 // @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module '@gno... Remove this comment to see the full error message
@@ -22,7 +22,6 @@ import {
   isExac,
   hasCopyNumberVariants,
   isV2,
-  getTopLevelDataset,
 } from '@gnomad/dataset-metadata/metadata'
 import ConstraintTable from '../ConstraintTable/ConstraintTable'
 import VariantCooccurrenceCountsTable, {
@@ -73,7 +72,6 @@ import {
 } from '../ChartStyles'
 import { logButtonClick } from '../analytics'
 import { GtexTissueExpression } from './TranscriptsTissueExpression'
-import { GTEX_TISSUES } from '../gtex'
 
 export type Strand = '+' | '-'
 
diff --git a/browser/src/GenePage/GeneTranscriptsTrack.tsx b/browser/src/GenePage/GeneTranscriptsTrack.tsx
index 33759636d..b4830231c 100644
--- a/browser/src/GenePage/GeneTranscriptsTrack.tsx
+++ b/browser/src/GenePage/GeneTranscriptsTrack.tsx
@@ -1,5 +1,5 @@
 import { max, mean } from 'd3-array'
-import React, { useEffect, useRef, useState } from 'react'
+import React, { useRef, useState } from 'react'
 import styled from 'styled-components'
 
 // @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module '@gno... Remove this comment to see the full error message
@@ -8,19 +8,14 @@ import { Track } from '@gnomad/region-viewer'
 import TranscriptsTrack from '@gnomad/track-transcripts'
 import { Button, Modal, TooltipAnchor } from '@gnomad/ui'
 
-import { ALL_GTEX_TISSUES, GtexTissueName, GtexTissues, TissueDetail } from '../gtex'
+import { ALL_GTEX_TISSUES, GtexTissueName } from '../gtex'
 import InfoButton from '../help/InfoButton'
 import Link from '../Link'
 import sortedTranscripts from './sortedTranscripts'
 import TranscriptsTissueExpression from './TranscriptsTissueExpression'
 import { Gene } from './GenePage'
-import {
-  DatasetId,
-  getTopLevelDataset,
-  hasStructuralVariants,
-} from '../../../dataset-metadata/metadata'
+import { hasStructuralVariants } from '../../../dataset-metadata/metadata'
 import { GtexTissueDetail, TranscriptWithTissueExpression } from './TissueExpressionTrack'
-import { Transcript } from '../TranscriptPage/TranscriptPage'
 
 const TranscriptsInfoWrapper = styled.div`
   display: flex;
@@ -62,10 +57,10 @@ const GeneTranscriptsTrack = ({
 
   const gtexTissues: Partial<Record<GtexTissueName, GtexTissueDetail>> = {}
   if (isTissueExpressionAvailable) {
-    const transcript = (gene.transcripts as TranscriptWithTissueExpression[]).find(
+    const preferredTranscript = (gene.transcripts as TranscriptWithTissueExpression[]).find(
       (transcript) => transcript.transcript_id === preferredTranscriptId
     )
-    transcript!.gtex_tissue_expression.forEach((tissue) => {
+    preferredTranscript!.gtex_tissue_expression.forEach((tissue) => {
       gtexTissues[tissue.tissue as GtexTissueName] = {
         fullName: ALL_GTEX_TISSUES[tissue.tissue as GtexTissueName].fullName || tissue.tissue,
         color: ALL_GTEX_TISSUES[tissue.tissue as GtexTissueName].color || '#888888',
diff --git a/browser/src/GenePage/TissueExpressionTrack.tsx b/browser/src/GenePage/TissueExpressionTrack.tsx
index 8f63bd874..bcca8ca43 100644
--- a/browser/src/GenePage/TissueExpressionTrack.tsx
+++ b/browser/src/GenePage/TissueExpressionTrack.tsx
@@ -1,6 +1,6 @@
 import { max, mean } from 'd3-array'
 import { scaleLinear } from 'd3-scale'
-import React, { useEffect, useRef, useState } from 'react'
+import React, { useRef, useState } from 'react'
 import styled from 'styled-components'
 
 // @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module '@gno... Remove this comment to see the full error message
@@ -9,15 +9,13 @@ import { Track } from '@gnomad/region-viewer'
 import { RegionsPlot } from '@gnomad/track-regions'
 import { Badge, Button, Modal, SearchInput, Select, TooltipAnchor } from '@gnomad/ui'
 
-import { ALL_GTEX_TISSUES, AllGtexTissues, GTEX_TISSUES, GtexTissueName } from '../gtex'
+import { ALL_GTEX_TISSUES, AllGtexTissues, GtexTissueName } from '../gtex'
 import InfoButton from '../help/InfoButton'
 
 import { logButtonClick } from '../analytics'
 
 import TranscriptsTissueExpression, { GtexTissueExpression } from './TranscriptsTissueExpression'
 import { GeneTranscript } from './GenePage'
-import { DatasetId, getTopLevelDataset } from '@gnomad/dataset-metadata/metadata'
-import { ALL } from 'dns'
 
 const getPlotRegions = (expressionRegions: any, getValueForRegion: any) => {
   const roundedRegions = expressionRegions.map((region: any) => ({
@@ -375,7 +373,7 @@ const TissueExpressionTrack = ({
   const gtexTissues: Partial<Record<GtexTissueName, GtexTissueDetail>> = {}
   transcripts
     .find((transcript) => transcript.transcript_id === preferredTranscriptId)
-    ?.gtex_tissue_expression.map((tissue) => {
+    ?.gtex_tissue_expression.forEach((tissue) => {
       gtexTissues[tissue.tissue as GtexTissueName] = {
         fullName: ALL_GTEX_TISSUES[tissue.tissue as GtexTissueName].fullName || tissue.tissue,
         color: ALL_GTEX_TISSUES[tissue.tissue as GtexTissueName].color || '#888888',
@@ -418,7 +416,7 @@ const TissueExpressionTrack = ({
             (transcript) =>
               transcript.gtex_tissue_expression.find((tissue) => tissue.tissue === tissueId)?.value
           )
-          .filter((value): value is number => value != undefined)
+          .filter((value): value is number => value !== undefined)
       )
 
       return {