Failed App-V application after upgrade App-V 5.0 SP2 to SP3

Hi,

I have these App-V 5.0 SP2 clients which I deploy an App-V package to. Before deploying the package the prereq (App-V 5.0 SP3 -since we want to update them- is installed.

After install App-V 5.0 SP3 a reboot is needed but the App-V package detects App-V 5.0 SP3 is installed and tries to install the App-V application but fails.
The software change returned error code 0x87D0128F(-2016406897).

I read in forums "reinstall the App-V client" but that one works fine (another App-v package installs and works correctly).

How can I make this (upgrade App-V 5.0 SP2 to 3 + install App-V package) work?

J.

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Jan Hoedt