App stagnates / Intensive calculation?

[george55]

Hi all,

Have a serious problem with an App. It is stagnating and don't know why. Have many objects like below and even I'm waiting for hours it doesn't change and stagnates in this situation.

The App has around 100'000 KB. It has some aggregations and expressions. According to the Qlik Operations Monitor report the actual max Engine CPU is at 27% and % RAM Committed at 15%. All other Apps are working very fast and without any problems.

Can someone guide me to find out the bottleneck? 

Thanks

George

[andoryuu]

This sounds like an AAALR error to me. You can follow the instructions here: https://support.qlik.com/articles/000019323 to check your logs and apply the change.

[george55]

New Information:

If I duplicate the app and open the new app, it is very fast and it works! So I believe if it is a AAALR problem, the new duplicate app should have the same issue?