There are two reason why I use absolute path rather than relative path.
1. If you are using VMware, the VMware guide suggest you put all your bot profile to shared single folder. That profile would be probably like Z:\Profiles\A3\Start.xml. The advantage is that, if you update your profile, you don't need to copy it everywhere. Map your shared folder to the same place, that will solve your problem. (And I am doing the same thing too)
2. Since this is an Inactivity Timer, the stability is the most important point. Due to DB/Profile manager random bug, in some situation, the current profile path or last profile path can not be read, null point exception come out. That's why some people keep loop the in the last profile without progressing. If the current or last profile path can not be detected, it is really hard to figure out which profile you want to go. So, be safe, absolute path is introduced.
Anyway, this is a one off job for you if you don't want to map network drive or shared folder. Hope it is not much trouble for you.
In the later version, I will try to add smart detect "Start Profile". But reliable is the more important than easy to setup.