1) Old Claudia herself said she used her another herself by Quantam Entanglement . So we can assume alter old claudia went to 1954 and shot dead by Noah .
2) Old caludia vs Younger adult claudia meet: After explaining everything to Adam, Old claudia meets younger Claudia (looks like 2041 year apperance .Her hair color s diff) at the church and again she is going to 1954 . We get to know this since younger Claudia says to old claudia as " tell sorry to dad".. so this particular scene is a flashback they are showing to us or actually happening with her younger self (2041 version) post Adam meet?
3) If we assume Old Claudia meets Adam in future (2053 when he tries to destroy origin) then she goes to 1954 to die, where she used here alternate self by Quantam Entanglement.. ?
Why d hell they confuse us so much without showing exactly what happened and when happened.. atleast n d last episode.
Note: More over this epic scene when old claudia meets her younger self in Church (season 3 ep 8) completely missing in official dark netfilx timeline guide..