Good morning. I experimented this error when I try to use imv.
imv-wayland: error while loading shared libraries: libImath-3_1.so.29: cannot open shared object file: No such file or directory
I have just checked I don't have anything from ArchLinux repository installed:
doas pacman -Ss imath
world/imath 3.0.5-1 [installed]
A C++ and python library of 2D and 3D vector, matrix, and math operations for computer graphics
extra/imath 3.1.0-1 [installed: 3.0.5-1]
A C++ and python library of 2D and 3D vector, matrix, and math operations for computer graphics
community/plantuml-ascii-math 20171116-2
Plantuml language extension to allow use AsciiMath or JLaTeXMath notation
doas pacman -Ss imv
community/imv 4.2.0-3 [installed]
Image viewer for Wayland and X11
community/imvirt 0.9.6-8
Detect the virtualization technology of a machine, it is run in
I didn't have this issue yesterday. So I don't know if you are planning to update imv or something. I normally upgrade everyday.
EDIT: imv comes from community. So I guess I should wait until community upgrade the library. I am sorry for opening this thread.
Best regards.