Kosma Moczek

Tested under the following setup: * Win10, GTX 1660S, roughly recent drivers * Fabric 1.18.1, heavily modded (including Sodium/Indium/Iris/Continuity) * Single monitor but with 125% text scaling * Tried Discord...

Did extra testing: * MSI Afterburner overlay - works * Multi-monitor - works * SEUS shaders - works * No noticeable performance difference with and without the mod

Side note, probably obvious - crashes on macOS because it can't locate the DLL file.

I have the same problem on integrated AMD graphics (Ryzen 3 3200G with Vega 8) running at 1440p.

Went and bought a proper card... also happens on a Radeon RX 570.

I have the same problem on integrated AMD graphics (Ryzen 3 3200G with Vega 8) running at 1440p. Can share my machine for testing if needed. Maybe Vsync doesn't work?

Went and bought a proper card... also happens on a Radeon RX 570.

Update: tearing still happens with Radeon Enhanced Sync and/or OpenGL Triple Buffering. Also, another datapoint: I'm running Optifine 1.15.2 pre21.

Is there a test build?

Did you ever figure this out?