Some app icons gain two black lines after some time or icon change

Submitted by Yan Pas

Assigned to Nick Schermer

Link to original bug (#12163)

Description

Created attachment 6430 scr

I've noticed that two apps (skype and simplescreenrecorder) which are qt as far as i remember after some time or after changng tray icon get two black lines : ine at the bottom, another on the right. That happens, when the panel size is 32, when lower - haven't met. My tray icons size is 24, without border

Attachment 6430, "scr":

Version: Unspecified