Hi,
In previous versions, when we enable Q-link, select more than one track, then double click to “send level” and type the number value, the same value of all selected track will also change.
In Nuendo 14 it won’t work. The only way to change them at once is using the pointer to move the value.
May it be a bug? This option may help when we want an exact number of send level.
Meanwhile the other level values (Volume, Pan ect..) work as expected.
Same in Cubase. 
For Cubase this has been reported to Steinberg by Martin.
In fact one of the many reasons I don’t use NU14 for actual work. :-/
Same issue here on latest Nuendo. Really miss this feature!
Already reported and support confirmed it. It’s scheduled for a fix.
Just tried it in Cubase 15. Still broken.
I can’t believe this is still broken in the latest C15. It wasn’t fixed in Nuendo 14.0.40 either. Support said it was reproduced in-house and scheduled for a fix.
They didn’t mention the century, did they …? 
Really? It seems just a simple mistake since it was working as normal from the previous version.
I am also waiting for a fix of the bug “image under construction”.