importing/moving multitrack sesx files into a different multitrack sesx file

hello i made a new multitrack sesx file from my 'main' sesx file in order to mix more easily and then i copied and pasted mixed files from that session back into the main multitrack sesx file but the reverb and compression and other effects i had applied aren't present in the main multitrack sesx.

plus, when i click on the pasted files i don't see the effects in the effects rack.

if there is a solution i would be grateful to learn how to do it.

thank you!