>>/49508/
It's hard to say. Because of how poorly everything is maintained and because of the politics of the nation.
This goes back to the G36. It has been in service sense 1997 and it is used by various nations yet issues only came up with it in 2012 and only the Germans had problems with it.
They said that it lost accuracy after overheating, which is actually normal for any gun and Ursula von der Lyn(yes her) was involved in trying to discredit it and replace it. Yet no tests have shown any issues with the rifle and even when it went to court, HK won.
It's just politics.
Maybe they are trying something like that with the Puma in order to replace it with the Lynx, they have not said what the issues actually are.