Query builder doesn't respond when some execution is already in progress
Open any collection--> While the data is loading, try typing something on "Query" or "projection" section. It doesn't allow. In fact the background processing is blocking the UI thread. Mongodb Compass has done pretty well in this. Contact me if the issue still not clear.
Thanks a lot for reporting this.
We’ll take a look at this and endeavour to have a fix in an upcoming release of Studio 3T.