So, since unity 2018.3 on I had a bug where I could not type more then one letter / number in the playmaker editor window text input fields. After a single keyboard input, the playmaker editor window was not active anymore. Instead, the scene view was active.
This happened quite random and I was never able to reproduce it. It also did not happen in some projects.
Today I found the reason for that: The global variables window causes this bug. And it only happens in projects where I use playmaker.
Whenever I click into the global variable window and making it active, the above described happens. When the window is not open all works fine.
I have mostly docked the window in my layout. But when it´s free floating somewhere else and I hit play, the window even vanishes.
So, something seems to be off with the variables window. Is this a know bug or is it just me? I also happens on my other machines, by the way.
Haven´t found anything related yet so I thought I post here.
edit: Unity 2019.3.13f1 and latest playmaker version. But it happend also in older unity and playmaker versions.