Eclipse RCP maximized editor not showing when migrating to Eclipse photon

I have a RCP application I have migrated from eclipse indigo to eclipse photon. When I open the editor as before no editor shows up.

However, the editor is indeed correctly loaded as I'm able to access it when minimized (see image), but if I try to maximize it, it disappears just showing an empty area (see image) where the editor was shown in eclipse indigo .

Editor is defined in an extension point

  <extension
     point="org.eclipse.ui.editors">
  <editor
        class="arbolDefinicion.editors.ADLEditor"
        contributorClass="org.eclipse.ui.texteditor.BasicTextEditorActionContributor"
        extensions="adl"
        icon="icons/c_complex_object.ico"
        id="arbolDefinicion.editors.ADLEditor"
        name="Editor ADL"/>
  </extension>

I'm opening/showing the editor part with the lines

PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().setEditorAreaVisible(true);

then getting the contents of the document with

((AbstractDecoratedTextEditor) window.getActivePage().getActiveEditor()).getDocumentProvider().getDocument(((AbstractDecoratedTextEditor) window.getActivePage().getActiveEditor()).getEditorInput());

and then setting the contents, which seems to work fine.

The editor is loaded with the following lines:

                IEditorInput input=new FileEditorInput(fstorage);

                String editorId= getEditorId(file);

                IWorkbenchPage page= fWindow.getActivePage();

                try {

                    if(page!=null)
                    {
                        IEditorPart part = page.openEditor(input, editorId );
                        page.activate(part);
                    }


                } catch (PartInitException e) {
                    log(e);
                }

As stated above, there is no errors opening the editor, as it can be accessed if not maximized.

Are there any extra steps in Eclipse photon that are needed to show a maximized editor?