highlighting fails on some files

[pawrequest]

notably Codeware.Global with > 40k lines has highlighting on some lines not others

1-8 = highlighted (8 is first addfield call)
9 - 851 not highlighted
852 - 12,795 - highlighting
12,796 - ?? no highlighting

public native class ActionScript extends IObjectScriptBase {
  native let actionFlags: Uint32;
  public final native func EnableUpdate() # 852 here
  public final native func GetAITime()
}

public native class entdismembermentDebris extends CResource {
  native let items: array<entdismembermentDebrisResourceItem>;
}

public native struct entdismembermentDebrisResourceItem {
  native let rig: ResourceRef; // rRef<animRig>
  native let mesh: ResourceRef; // rRef<CMesh>
}

public native class entdismembermentEffectResource extends ISerializable { # 12,797
  native let Name: CName;
  native let AppearanceNames: array<CName>;
  native let Offset: Transform;
  native let Effect: ResourceAsyncRef; // raRef<worldEffect>
  native let MatchToWoundByName: Bool;
}

[pawrequest]

potentially caused or exacerbated by hooks like addfield and wrapmethod.

this works in vscode from same textmate definition afaik...

fails at these calls, then - sometimes - starts working some time later

redscript.tmLanguage.json:

 "repository": {
    "constructor": {
      "patterns": [
        {
          "name": "meta.constructor.redscript",
          "begin": "\\bnew\\s",
          "beginCaptures":{
            "0": {
              "name": "keyword.other.declarataion-specifier.redscript"
            },
            "1": {
              "name": "entity.name.class.redscript"
            }
          },
          "end": "(?!\\G)(\\))",
          "endCaptures": {
            "1": {
              "name": "punctuation.definition.arguments.end.redscript"
            }
          },
          "patterns": [
            {
              "name": "meta.constructor.class.redscript",
              "begin": "((?<q>`?)[\\p{L}_][\\p{L}_\\p{N}\\p{M}]*(\\k<q>))(\\()",
              "beginCaptures" : {
                "1": {
                  "name": "entity.name.class.redscript"
                },
                "4": {
                  "name": "punctuation.definition.arguments.begin.redscript"
                }
              },
              "end": "(?!\\G)|"
            }
          ]
        }
      ]
    },
    "attributes": {
      "patterns": [
        {
          "name": "meta.attribute.redscript",
          "begin": "((@)(?:(?:wrap|add|replace)Method|replaceGlobal|addField|runtimeProperty))(\\()",
          "beginCaptures": {
            "1": {
              "name": "storage.modifier.attribute.redscript"
            },
            "2": {
              "name": "punctuation.definition.attribute.redscript"
            },
            "3": {
              "name": "punctuation.definition.arguments.begin.redscript"
            }
          },
          "end": "(?!\\G)\\)",
          "endCaptures": {
            "0": {
              "name": "punctuation.definition.arguments.end.redscript"
            }
          },
          "patterns": [
            {
              "match": "((?<q>`?)[\\p{L}_][\\p{L}_\\p{N}\\p{M}]*(\\k<q>))",
              "name": "entity.name.class.redscript"
            }, 
            {
              "include": "#string"
            }
          ]
        }
      ]
    },

[pawrequest]

also issues with switch/case keywords - breaks highlighting for a few lines / funcs after