https://bugs.winehq.org/show_bug.cgi?id=43007
--- Comment #6 from matthias.koole@gmail.com --- (In reply to Bruno Jesus from comment #5)
What version of Reaper? What file you try to open? A project file? Give the steps to reproduce. I tested opening a project in Reaper 5.4 demo and there was no crash.
I am using 5.4 demo 32 bits It crashes when I try to open a project or to save a project.