Hi! I have Avidemux 2.7.3 but in Pmp the latest version is 2.7.4. Pmp does not detect that I have an older version. Edit: It does not notice that the app itself is installed.
Also they released a newer version 3 days ago (version 2.7.5) but Pmp is not aware of this. http://avidemux.sourceforge.net/news.html#2019-08-31
I now installed the 2.7.4 version of Avidemux by using Pmp but Pmp does not detect it. I just recalled that I've had this kind of problems before also.
Avidemux still not detected installed by PMP.
Still facing the same problem and trying to resolve it. But It's very difficult to work on that.