I guess the reason is that ID and ID debug use the same BridgeTalk identifier and the installation location of ID debug (instead of ID) is saved in Product Configuration Database (PCD). You can launch ExtendScript Toolkit and run "BridgeTalk.__diagnostics__;" command to check it. I think you have to uninstall ID debug.
You are right. For an unknown reason, the debug version replaces the release version, whatever the installation order. If I install the debug after the release, or the contrary, the result is the same. Is this not a bug?
Is there a workaround for me to have the two versions installed simultaneously? Could I replace the path in PCD?