Tried to install the update here through BA and got my usual problem.
It uninstalls the old version and then I get:
So it doesn't go any further and leaves me with no Bandlab Assistant installed.
I then manually download the latest version and install it and all is fine. Annoying.
CbB startup speed is fine but I am still running 2018.05 build 19 as the last update was minor and of no interest (Japanese language update I think).