At the very least, you have a type mismatch issue with this Calc Value - name is a string while the FindXXX functions return an item reference. Please see the Connect online help.
Also, as is now, I don't see what this is supposed to accomplish as a Calc Value versus a normal field mapping of "name" to "name" in the two work spaces.

You might want to consider reading through some of the basic sample scenarios (even if they are not for Octane->Octane but instead with Jira or ADO), to improve your general understanding of Connect.

Connect does not sync "by name" but by individual item, using unique IDs and an internal database of cross-references based on these unique IDs to track associated items between two endpoints.
Connect does create these xrefs whenever it creates items "on the other side".
If you already have related items on both sides before you use Connect, then you need to create a list of xrefs for these and import them into Connect - to "teach" Connect about which items already exist on both sides that are related.

For more detailed assistance, please consider creating a support case (create Octane case and add "Connect" as prefix in title and/or clearly mention "MF Connect" in case description.

Please always state the version of Connect you are using when asking for assistance.