Is it possible to use your own screenshot names without appending the extra stuff?
Here’s an example of what I mean:
from:
Launch Screen_1_6E441618-6CF9-419F-9ABA-402D4D78F881.png
to:
Launch Screen.png
Hello @vsebastian 
If this is still an issue, can you let me know where you encounter this?
You can always rename your files via a Script step, which uses Bash scripting 