Mouse button input events are not picked up consistently on macOS

[keeganstothert]

Godot version

3.3.4

System information

macOS Monterey 12.0.1

Issue description

input events are not picking up consistently for left click events on apple silicon / Monterey

Steps to reproduce

create a brand new project and create an action that maps to any key and the left mouse button.

func _input(event):
	if event.is_action_pressed("spawn"):
		print("spawn")

the print line will fire when pressing the key but will only fire when double clicking or rapidly clicking the left mouse button. Every few times it will actually work as expected so you may have to restart the game once or twice if it appears to be working.

tested on x86 under manjaro and the issue does not exist.

tested under rosetta x86_64-apple-darwin and native aarch-apple-darwin on m1 MacBook issues occurs for both.

Minimal reproduction project

any brand new project on 3.3.4 on apple silicon and Monterey 12.0.1

[Calinou]

Some questions to better understand the cause:

• Can you reproduce this if you call Input.set_use_accumulated_input(false) in any script's _ready() function?
• Can you reproduce this after disabling V-Sync? (Assuming macOS doesn't force V-Sync for all applications by now.)
• Can you reproduce this after disabling V-Sync and setting a FPS cap like 60 using the Force Fps option in the Project Settings?

tested on x86 under manjaro and the issue does not exist.

This actually does happen on Linux, but hasn't been reported on macOS yet: #48369

[bruvzg]

Might be related to #54306, can you reproduce it after switching to another app and back?

[keeganstothert]

@bruvzg switching to another app and back does indeed resolve the issue, it definitely seems related

[insomnocrat]

I'm encountering the same issue, and I can reproduce it using the steps mentioned in #8653 (moving the mouse after clicking run vs not moving the mouse).

[keeganstothert]

@Calinou

1. Input.set_use_accumulated_input(false) does not resolve it
2. disabling V-Sync does not resolve it
3. V-Sync and force fps does not resolve it

i've tested multiple times and ways and could not reproduce this issue on linux, only on macOS. This issue only appears to happen with the left mouse button all other input works

[akien-mga]

Fixed by #54474.

[LordBrkica]

I am also encountering this issue on mac OS Monterey 12.0.1. Godot version is 3.4 stable mono.
Device is mac mini i3 2018, with UHD 630 GPU.

Bug occurs sporadically, 1 out of 10 times when I start the game the bug will occur.
When it occurs, its immediately obvious as my game starting UI elements (buttons) are also affected.

The Bug I would describe most simply as follows:

• one normal left mouse click seems to be ignored/missed, one needs to double click and this is then registered as one normal click

GLES2/3 options are affected equally, and its not specific to one control type (e.g. Button) but seems to affect all controls equally.

Bug seems to go away after some time (window switching and window minimizing/ maximizing maybe helps).

If I understood correctly, this bug should have been solved in 3.4 but for me its still there...