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rncbc's picture

you'll need to install the latest librubberband3 (>= 4.0.0) which you may find on the repos as well, on the so called 3rd-party tools and libraries, or better yet, as I believe Linux Mint 22 is based on the level to Ubuntu 22.04 (jammy), you may take the PPA's for fun and profit:

sudo add-apt-repository ppa:rncbc/apps-jammy 
sudo add-apt-repository ppa:rncbc/libs-jammy 
sudo apt-get update

then

sudo apt-get install qtractor

that will install the greatest and latest qtractor from "apps" and hopefully librubberband3 from "libs" ppa's.

however don't you take the above instructions literally, there might be nuances to it, specially if Mint is not exactly an ubuntu knock-off as I'm assuming... ;)
better ask the Mint forums, or more knowledgeable Mint users than me, on how you can properly add the PPA's to your system.

good luck!
cheers