Hi,
it seems that this bug is really old, I have faced it on 18 ,19 versions, as well as with the 20 beta3 also.
The user has made a video describing it:
https://www.youtube.com/watch?app=desktop&v=kijvhoOKbsIFrom my side, once I reuse the fusion composition, and try to use the keyframes the keyframes from tools are not displayed