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Fixed in 2020.2.X

Fixed in 2019.4.X, 2020.1.X



Found in



Issue ID




Input lag in large scene



There seems to be some input lag that accumulate over time when the application ticking is taking to much time.

1. Download BoatAttack demo
2. Open scene PerfTestsBoatAttack.unity
3. Use fly cam to move around for 5-10 seconds
4. Release keyboard and mouse inputs

Result: The fly camera continues for many seconds after inputs have been released
Expected: The fly cam should stop as soon as possible.

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a15

  2. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.0b13

  3. Resolution Note (fix version 2019.4):

    Fixed in 2019.4.3f1

Comments (3)

  1. simonrocheman

    Jul 01, 2020 07:50

    I would also be very happy if this bug could be solved on Unity2019 !

  2. TheGamery

    Jun 25, 2020 13:15

    Hopefully a fix comes to 2019 LTS soon because it has crippled my project.

  3. idototes

    Jun 12, 2020 21:58

    Fyi- This is happening also in 2019.3.11 and 2019.3.15 as far as we checked. We rolled our installations back to 2019.3.7 and the problem is gone, so it might give some scope. Waiting for the upcoming 2019.4 fix and we will likely upgrade to LTS in any case.

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