Launch Commands Prompt Don't Work

Product: The EA app
Platform:PC
Error Report ID (learn how to create an Error Report ID in the sticky post) N/A (No Error Report ID given)
Which client functionality are you experiencing this bug with? Launch Game
When did this happen? (dd.mm.yy hh:mm) Since the EA Desktop beta
Summarize your bug Launch commands / launch args don't work on EA App. Using symbols that are required for launch commands like "-" and "/" will result in the EA App telling you "The commands you entered contain an invalid character. Be sure to enter valid alphanumeric (A-Z, 0-9) and special characters (-, /, etc.)." Due to every character being "invalid" according to the EA App, you can't save the commands entered. Using shortcuts and having the EA App launch using them doesn't work either.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Open a game's library menu > Manage > View properties > go into the Advanced Launch options prompt.
What happens when the bug occurs? Nothing, the launch commands don't work. Due to everything being considered an invalid character, you can't save your launch commands.
What do you expect to see? My game using the launch commands I entered.

‌

Launch commands / launch args don't work on EA App. Using symbols that are required for launch commands like "-" and "/" will result in the EA App telling you "The commands you entered contain an invalid character. Be sure to enter valid alphanumeric (A-Z, 0-9) and special characters (-, /, etc.)."

You're told these symbols are valid in the message said above, yet you can't use them. Same goes for letters and numbers too! Origin's launch commands worked, I don't see why it wouldn't work for this launcher either, especially since it's been like this since the beta. Due to every character being "invalid" according to the EA App, you can't save the commands entered. Same goes for using shortcuts and having the EA App launch using them. It just... doesn't work at all and it's incredibly frustrating. I'm so fed up with this forced migration, I just wanna use Origin more...