What version of Premiere Elements are you using and on what computer operating system is it running?
In the absence of that information, I will generalize....
If you are using Premiere Elements 11 or higher and you or the project have the correct project preset, you will see
no render indicator line above that Timeline content. You will after your edits of that file. Need for render to get the best possible
preview will be reflected with an orange line over the content.
As for keyframes not showing....what keyframes are you seeking: keyframes for Position property, keyframes for Scale property....?
If the video has been keyframed in the Premiere Elements project, right click the video, and select Show Clip Keyframes, followed by selecting the property that was keyframed. You should then see "white dots" (keyframes) on the Timeline clip's rubberband (orange line that runs horizontally across duration of clip).
Please review the above and let us know if that is the information that you sought.
Thank you for replying so quickly. The version is Premiere Elements v11
I have just resolved the problem. The difficulty was not that the keyframes were not showing, it was that the keyframe options were greyed out so could not be selected.
Before adding new keyframes, I needed to click the toggle animation button.
Thanks for the reply that you resolved you keyframe matter. What about the Timeline render as per your thread title "no render colours nor keyframes visible"?
From what you wrote I pictured at keyframe matter at the Timeline level rather than in the Applied Effects Tab/Applied Effects Palette/ and the keyframing area there for the property being keyframed.
Glad you are moving forward with your Premiere Elements projects.