Hi mvogt1,

What's Linux desktop version you are using ?

you can use the following command to check :

cat /usr/lib/vmware/viewagent/Product.txt

please paste the output here.

if the version is 7.x, e.g. output like 

VMware-horizonagent-linux-x86_64-7.13.2-19155362

then you must use older client like 5.5.x