Try ignore problem

Author: PHPirates

plugin/plugin-verifier-ignored-problems.txt

@@ -1,2 +1 @@
-.*TemplateWordInPluginId
-.*TemplateWordInPluginName
+.*com.firsttimeinforever.intellij.pdf.viewer.tex.TexPdfViewer.forwardSearch$lambda$2(FileEditorManager, VirtualFile, OpenFileDescriptor, Project, int, VirtualFile) : void. This field is marked with @org.jetbrains.annotations.ApiStatus.Internal.*

plugin/src/main/kotlin/com/firsttimeinforever/intellij/pdf/viewer/tex/TexPdfViewer.kt

@@ -69,7 +69,8 @@ class TexPdfViewer : ExternalPdfViewer {
           // Only open in right split when there already is an open file, otherwise it is not possible to open a right split because there
           // is nothing to split.
           if (fileEditorManager.hasOpenFiles()) {
-            val editorWindow = OpenInRightSplitAction.openInRightSplit(project, file, pdfEditor, requestFocus = false)
+            // There does not seem to be a public alternative
+            @Suppress("UnstableApiUsage") val editorWindow = OpenInRightSplitAction.openInRightSplit(project, file, pdfEditor, requestFocus = false)
             editorWindow?.selectedComposite?.selectedWithProvider?.fileEditor as? PdfFileEditor
           } else {
             pdfEditor.navigate(false)