problemMatcher with multiple patterns doesn't work

<!-- ⚠️⚠️ Do Not Delete This! bug_report_template ⚠️⚠️ --> <!-- Please read our Rules of Conduct: https://opensource.microsoft.com/codeofconduct/ --> <!-- 🕮 Read our guide about submitting issues: https://github.com/microsoft/vscode/wiki/Submitting-Bugs-and-Suggestions --> <!-- 🔎 Search existing issues to avoid creating duplicates. --> <!-- 🧪 Test using the latest Insiders build to see if your issue has already been fixed: https://code.visualstudio.com/insiders/ --> <!-- 💡 Instead of creating your report here, use 'Report Issue' from the 'Help' menu in VS Code to pre-fill useful information. --> <!-- 🔧 Launch with `code --disable-extensions` to check. --> Does this issue occur when all extensions are disabled?: N/A <!-- 🪓 If you answered No above, use 'Help: Start Extension Bisect' from Command Palette to try to identify the cause. --> <!-- 📣 Issues caused by an extension need to be reported directly to the extension publisher. The 'Help > Report Issue' dialog can assist with this. --> - VS Code Version: 1.70.2 - OS Version: Ubuntu 20.04 I'm trying to write problemMatchers for linker errors (for some reason linker errors do not generate new entries in "PROBLEMS"). I was able to get a few working in my tasks.json file. But some problemMatchers overrule others (linker2 and linker3). This is a problem. It also takes up a lot of lines of code in my tasks.json file, so I decided to write an Extension so I can add the problemMatcher in one line. The extension has the problem that it only seems to work with 1 pattern. More than one pattern results in 0 problems. Another problem is that the extension is very strict and it forces you to specify a file even if the error isn't specific to a file (such as memory size issues). Here is my tasks.json: ``` "version": "2.0.0", "tasks": [ { "type": "cmake", "label": "Build all", "command": "build", "targets": [ "all" ], "group": "build", "problemMatcher": [ "$gcc…