CSS works incorrect at two same LO

I have two similar learning objects.
The first one is completely emptied and a new text page is added.
The second is new learning object.
Content is now exactly the same, but in example 1, css does not work well and in example 2, css works well.
I suspect that when removing old pages in example 1 there is something left in the script of the learning object and the object is not really clean.
sorry, can not attach the zips.

Any reason why you cannot send the zips?

Can you send them to me by PM?

The problem is solved. The next time I started xerte en opened the LO, everything worked fine. I suppose a problem with the cache.