Translation disabled during build; skipping

Each time a single .cpp file is compile inside Visual Studio (in projet with Qt), the QT VS Tools start/try to "compile" each .ts file and display this line (because there is nothing to do):
Translation disabled during build; skipping.

This line appear multiples times (I have like 10 .ts files in my project).
Note that all .ts files have a custom item type "Does not participate in build" (for build rules), and even if the project have option "No" for "Run lupdate On Build", the lines Translation disabled during build; skipping. continue to be display.

It's annoying, because it seems to slow done the compilation of the only file that Visual Studio as to build.

Qt version: 5.15.2 x64 bits.
Visual Studio 2019 16.11