TextMate has always had problems with large files since the move to TextMate 2. I think the text rendering is implemented differently compared to TextMate 1.5.

On 10 Oct 2019, at 22:34, Gregg Kellogg <gregg@greggkellogg.net> wrote:

I created an issue for this in github.com/textmate/bugs (https://github.com/textmate/bugs/issues/33), but perhaps that issue tracker isn’t monitored any longer.

After upgrading to MacOS 10.15 (Catalina), scrolling through a large file (>6000 lines) often does not properly paint the text. This can be temporarily corrected by dragging a selection over the missing text.

• OS version: MacOS 10.15 (Catalina)
• Textmate version: 2019-09-15 (v2.0)
• File language: HTML
Most recently, I noticed this when moving to line 3500 in the referenced file and scrolling downwards.


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/Jacob Carlborg