diff --git a/plugins/circular-view/src/BaseChordDisplay/models/model.tsx b/plugins/circular-view/src/BaseChordDisplay/models/model.tsx
index 802879222f..af6ca386c8 100644
--- a/plugins/circular-view/src/BaseChordDisplay/models/model.tsx
+++ b/plugins/circular-view/src/BaseChordDisplay/models/model.tsx
@@ -249,16 +249,14 @@ export const BaseChordDisplayModel = types
 
       makeAbortableReaction(
         self,
-        () =>
-          ({
+        () => {
+          return {
             assemblyNames: getTrackAssemblyNames(self.parentTrack),
             adapter: getConf(getParent<any>(self, 2), 'adapter'),
             assemblyManager: getSession(self).assemblyManager,
-          }) as const,
+          } as const
+        },
         async (args, stopToken) => {
-          if (!args) {
-            return
-          }
           return args
             ? args.assemblyManager.getRefNameMapForAdapter(
                 args.adapter,
diff --git a/plugins/circular-view/src/BaseChordDisplay/models/renderReaction.ts b/plugins/circular-view/src/BaseChordDisplay/models/renderReaction.ts
index 5d93ca2a8a..a77fc7c616 100644
--- a/plugins/circular-view/src/BaseChordDisplay/models/renderReaction.ts
+++ b/plugins/circular-view/src/BaseChordDisplay/models/renderReaction.ts
@@ -54,6 +54,7 @@ export async function renderReactionEffect(props?: any, stopToken?: string) {
     ...renderProps,
     stopToken,
     exportSVG,
+    stopToken,
   })
 
   return {
diff --git a/plugins/gccontent/src/GCContentAdapter/GCContentAdapter.ts b/plugins/gccontent/src/GCContentAdapter/GCContentAdapter.ts
index 9d09f34791..5335822566 100644
--- a/plugins/gccontent/src/GCContentAdapter/GCContentAdapter.ts
+++ b/plugins/gccontent/src/GCContentAdapter/GCContentAdapter.ts
@@ -26,12 +26,12 @@ export default class GCContentAdapter extends BaseFeatureDataAdapter {
     return adapter.dataAdapter as BaseFeatureDataAdapter
   }
 
-  public async getRefNames() {
+  public async getRefNames(opts?: BaseOptions) {
     const adapter = await this.configure()
-    return adapter.getRefNames()
+    return adapter.getRefNames(opts)
   }
 
-  public getFeatures(query: Region, opts: BaseOptions) {
+  public getFeatures(query: Region, opts?: BaseOptions) {
     const { statusCallback = () => {}, stopToken } = opts || {}
     return ObservableCreate<Feature>(async observer => {
       const sequenceAdapter = await this.configure()
diff --git a/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts b/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
index 8cce078a1a..2f87572369 100644
--- a/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
+++ b/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
@@ -1,12 +1,5 @@
 import React from 'react'
-import {
-  types,
-  getParent,
-  isAlive,
-  cast,
-  Instance,
-  getSnapshot,
-} from 'mobx-state-tree'
+import { types, getParent, isAlive, cast, Instance } from 'mobx-state-tree'
 import { readConfObject } from '@jbrowse/core/configuration'
 import {
   assembleLocString,
diff --git a/plugins/sequence/src/TwoBitAdapter/TwoBitAdapter.ts b/plugins/sequence/src/TwoBitAdapter/TwoBitAdapter.ts
index bf47486e55..e180026bbe 100644
--- a/plugins/sequence/src/TwoBitAdapter/TwoBitAdapter.ts
+++ b/plugins/sequence/src/TwoBitAdapter/TwoBitAdapter.ts
@@ -43,7 +43,7 @@ export default class TwoBitAdapter extends BaseSequenceAdapter {
   }
   async setup() {
     if (!this.setupP) {
-      this.setupP = this.setupPre().catch(e => {
+      this.setupP = this.setupPre().catch((e: unknown) => {
         this.setupP = undefined
         throw e
       })
diff --git a/plugins/wiggle/src/MultiLinearWiggleDisplay/model.ts b/plugins/wiggle/src/MultiLinearWiggleDisplay/model.ts
index af724f5161..95728e0af3 100644
--- a/plugins/wiggle/src/MultiLinearWiggleDisplay/model.ts
+++ b/plugins/wiggle/src/MultiLinearWiggleDisplay/model.ts
@@ -24,6 +24,7 @@ import {
 // locals
 import { getScale, Source, YSCALEBAR_LABEL_OFFSET } from '../util'
 import SharedWiggleMixin from '../shared/SharedWiggleMixin'
+import { stopStopToken } from '@jbrowse/core/util/stopToken'
 
 const randomColor = () =>
   '#000000'.replaceAll('0', () => (~~(Math.random() * 16)).toString(16))
@@ -67,10 +68,26 @@ export function stateModelFactory(
       }),
     )
     .volatile(() => ({
+      /**
+       * #volatile
+       */
+      sourcesLoadingStopToken: undefined as string | undefined,
+      /**
+       * #volatile
+       */
       featureUnderMouseVolatile: undefined as Feature | undefined,
+      /**
+       * #volatile
+       */
       sourcesVolatile: undefined as Source[] | undefined,
     }))
     .actions(self => ({
+      setSourcesLoading(str: string) {
+        if (self.sourcesLoadingStopToken) {
+          stopStopToken(self.sourcesLoadingStopToken)
+        }
+        self.sourcesLoadingStopToken = str
+      },
       /**
        * #action
        */
diff --git a/plugins/wiggle/src/getMultiWiggleSourcesAutorun.ts b/plugins/wiggle/src/getMultiWiggleSourcesAutorun.ts
index c0f0417dae..d5b5b6b017 100644
--- a/plugins/wiggle/src/getMultiWiggleSourcesAutorun.ts
+++ b/plugins/wiggle/src/getMultiWiggleSourcesAutorun.ts
@@ -6,6 +6,7 @@ import { LinearGenomeViewModel } from '@jbrowse/plugin-linear-genome-view'
 import { AnyConfigurationModel } from '@jbrowse/core/configuration'
 import { getRpcSessionId } from '@jbrowse/core/util/tracks'
 import { isAbortException } from '@jbrowse/core/util/aborting'
+import { createStopToken } from '@jbrowse/core/util/stopToken'
 
 export interface Source {
   name: string
@@ -19,7 +20,7 @@ export function getMultiWiggleSourcesAutorun(self: {
   adapterConfig: AnyConfigurationModel
   autoscaleType: string
   adapterProps: () => Record<string, unknown>
-  setStatsLoading: (aborter: AbortController) => void
+  setSourcesLoading: (aborter: string) => void
   setError: (error: unknown) => void
   setMessage: (str: string) => void
   setSources: (sources: Source[]) => void
@@ -28,13 +29,15 @@ export function getMultiWiggleSourcesAutorun(self: {
     self,
     autorun(async () => {
       try {
-        const { rpcManager } = getSession(self)
-        const { adapterConfig } = self
-        const sessionId = getRpcSessionId(self)
         const view = getContainingView(self) as LinearGenomeViewModel
         if (!view.initialized) {
           return
         }
+        const { rpcManager } = getSession(self)
+        const { adapterConfig } = self
+        const token = createStopToken()
+        self.setSourcesLoading(token)
+        const sessionId = getRpcSessionId(self)
         const sources = (await rpcManager.call(
           sessionId,
           'MultiWiggleGetSources',
@@ -48,8 +51,8 @@ export function getMultiWiggleSourcesAutorun(self: {
           self.setSources(sources)
         }
       } catch (e) {
-        console.error(e)
         if (!isAbortException(e) && isAlive(self)) {
+          console.error(e)
           getSession(self).notifyError(`${e}`, e)
         }
       }