diff --git a/service.js b/service.js
index a12ed61..ce94220 100644
--- a/service.js
+++ b/service.js
@@ -666,11 +666,9 @@ class BesCKService extends BesService {
     this.ckEditorInstance.model.document.on('change:data', () => {
       const differ = this.ckEditorInstance.model.document.differ
       const changes = Array.from(differ.getChanges())
-      // TODO: Repostion mistakes after image is inserted (need some further research on this topic)
       for (const entry of changes) {
         if (entry.type === 'insert' || entry.type === 'remove') {
           const insertedElement = entry.name
-
           if (['paragraph', 'blockQuote'].includes(insertedElement)) {
             if (
               entry.attributes.has('listIndent') ||
@@ -694,18 +692,10 @@ class BesCKService extends BesService {
       }
     })
     this.ckEditorInstance.commands.get('undo').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
     this.ckEditorInstance.commands.get('redo').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
     this.ckEditorInstance.commands.get('bold').on('execute', () => {
       setTimeout(() => {
@@ -720,32 +710,16 @@ class BesCKService extends BesService {
       }, 500)
     })
     this.ckEditorInstance.commands.get('indent').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
     this.ckEditorInstance.commands.get('outdent').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
     this.ckEditorInstance.commands.get('numberedList').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
     this.ckEditorInstance.commands.get('bulletedList').on('execute', () => {
-      this.clearAllMistakes(this.scrollPanel)
-      this.clearChildren()
-      setTimeout(() => {
-        this.proof(hostElement)
-      }, 500)
+      this.handlePluginChanges()
     })
   }
 
@@ -771,10 +745,7 @@ class BesCKService extends BesService {
     let blockElements = new Set()
     event.getTargetRanges().forEach(range => {
       BesService.getNodesInRange(range).forEach(el => {
-        if (
-          el === hostElement ||
-          Array.from(hostElement.childNodes).includes(el)
-        ) {
+        if (el === hostElement || hostElement?.contains(el)) {
           blockElements.add(service.getBlockParent(el))
         }
       })
@@ -806,32 +777,13 @@ class BesCKService extends BesService {
     this.children = []
   }
 
-  handleCKInput(hostElement, ckEditorInstance) {
-    let service = besServices.find(e => e.hostElement === hostElement)
-    if (!service) return
-    if (service.timer) clearTimeout(service.timer)
-    service.abortController.abort()
-    const root = ckEditorInstance.model.document.getRoot()
-    const blockElements = Array.from(root.getChildren())
-    blockElements.forEach(block => {
-      const viewElement =
-        this.ckEditorInstance.editing.mapper.toViewElement(block)
-      const domElement =
-        this.ckEditorInstance.editing.view.domConverter.mapViewToDom(
-          viewElement
-        )
-      service.clearMistakeMarkup(domElement)
-      service.removeChild(domElement)
-    })
+  handlePluginChanges() {
+    this.clearAllMistakes(this.scrollPanel)
+    this.clearChildren()
     setTimeout(() => {
-      service.repositionMistakes()
-    }, 0)
-    service.timer = setTimeout(function () {
-      service.abortController = new AbortController()
-      service.proof(hostElement)
-    }, 1000)
+      this.proof(this.hostElement)
+    }, 500)
   }
-
   /**
    * This function disables the CKEditor spellcheck.
    *