Irregardless of the Premiere Elements version...
I do not believe you are doing anything wrong. I have not found it possible to copy a Timeline clip to which Time Remapping has been applied and use Paste Effects and Adjustments to other selected clips on the Timeline to achieve the same fast or slow motion for more than one clip at a time. For one thing the duration of the Time Remapped clip is different than those that have not gone through Time Remapping.
And, you cannot select more than 1 clip at a time to be taken into the Time Remapping workspace.
Also, special considerations need to exist for Pan and Zoom Tool for its pan and zoom effect applied to more than one photo at a time.
I will think about this some more. But, at this moment, it appear to be it is what it is.
I am having the same issue. For projects that need to go to Da Vinci Resolve for color and then back, this is a big problem. Would love a solution to this.
tujobi, are you saying that you're also trying to use Paste Effects and Adjustments on a clip that has had Time Remapping applied?
If so, ATR's answer still applies.
If you are dealing with a different issue, I'd recommend starting a new thread.
Are you sure you want Premiere ELEMENTS forum instead of Premiere Pro?