New version (2021.1) Studio slow performance


After migrating my project from 7.9 Studio i get really bad performance, right clicking on *.proc files is slow. After clicking i need to wait 5-10 seconds to react. Validation is also really slow. Someone already sent a ticket of this issue. I just wanted to share my bos files and experience, to help the fixing process.
After importing 1 and 2 of my bos files it isnt that slow, but after importing the third bos it gets really slow.


Windows 10 pro

External Link



I didnt find any workaround, tried to migrate to 7.11 and from 7.11 to 7.12, but didnt work.


Romain Bioteau
February 15, 2021, 10:14 AM

Hi Zoltan,

Thanks for providing some data to reproduce your issue. I have successfuly reproduce your performance issue and validated that the fix is effecient for this issue.

I let you know when we can release a maintenance version containing the fix.

Have a nice day.

Delphine Coille
February 23, 2021, 3:40 PM

Hi Zoltan, quick update, a patch will be added in 2021.1 Community Edition this week and will be announced on our Community blog.

Zoltán Kurucsai
7 days ago

Thank you for the fast support!



Romain Bioteau


Zoltán Kurucsai

Affects versions



Fix versions