happens to me often since jungle update came out
i tap someone with medigun and it disconnects after a moment, i have to hold down click for a sec to keep the autoheal on him

Its a bug that happened after pyro update

Yup, its real

Happens to me only occasionally though, not surprised most people dont notice

i really hate it but you can make it less noticeable by playing without viewmodels and / or the beam
for example r_drawviewmodel 0 and viewmodel_fov 30 makes it less obvious
hope it gets fixed soon because sometimes im trying to flash someone and it will auto-break, causing them to die and thats just so frustrating

using in the inverse heal script with +mouse1 bound to -attack works around it i believe

thought my mouse was dying glad its just a bug that will hopefully get fixed soon