Issue 1:
[Enter steps to reproduce below:]

...

...

Atom Version: 0.186.0

System: Mac OS X 10.10.2

Thrown From: Atom Core

Stack Trace

Uncaught Error: No line exists for row 11. Last screen row: 10

At /Applications/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:385

Error: No line exists for row 11. Last screen row: 10
at TextEditorPresenter.<anonymous> (/Applications/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:385:19)
at TextEditorPresenter.module.exports.TextEditorPresenter.batch (/Applications/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:91:12)
at TextEditorPresenter.module.exports.TextEditorPresenter.updateLinesState (/Applications/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:375:19)
at TextEditorPresenter.module.exports.TextEditorPresenter.getState (/Applications/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:123:14)
at TextEditorComponent.module.exports.TextEditorComponent.updateSync (/Applications/Atom.app/Contents/Resources/app/src/text-editor-component.js:172:38)
at /Applications/Atom.app/Contents/Resources/app/src/text-editor-component.js:280:28
at ViewRegistry.module.exports.ViewRegistry.performDocumentUpdate (/Applications/Atom.app/Contents/Resources/app/src/view-registry.js:159:9)
at /Applications/Atom.app/Contents/Resources/app/src/view-registry.js:3:61

Commands

-0:05.3 editor:indent (atom-text-editor.editor.is-focused)
-0:05.1 snippets:next-tab-stop (atom-text-editor.editor.is-focused)
-0:05.1 snippets:expand (atom-text-editor.editor.is-focused)
-0:05.1 editor:indent (atom-text-editor.editor.is-focused)
-0:04.9 snippets:next-tab-stop (atom-text-editor.editor.is-focused)
-0:04.9 snippets:expand (atom-text-editor.editor.is-focused)
-0:04.9 editor:indent (atom-text-editor.editor.is-focused)
-0:03.2 snippets:next-tab-stop (atom-text-editor.editor.is-focused)
-0:03.2 snippets:expand (atom-text-editor.editor.is-focused)
-0:03.2 editor:indent (atom-text-editor.editor.is-focused)
-0:02.9 snippets:next-tab-stop (atom-text-editor.editor.is-focused)
-0:02.9 snippets:expand (atom-text-editor.editor.is-focused)
-0:02.9 editor:indent (atom-text-editor.editor.is-focused)
-0:02.7 snippets:next-tab-stop (atom-text-editor.editor.is-focused)
-0:02.7 snippets:expand (atom-text-editor.editor.is-focused)
-0:02.7 editor:indent (atom-text-editor.editor.is-focused)

Config

{
"core": {
"themes": [
"atom-dark-ui",
"base16-tomorrow-dark-theme"
]
},
"editor": {
"showIndentGuide": true,
"invisibles": {},
"fontSize": 14
}
}

Installed Packages

# User
angularjs, v0.2.0
autocomplete-plus, v2.4.1
autocomplete-snippets, v1.0.1
color-picker, v1.4.4
emmet, v2.3.4
highlight-line, v0.10.1
javascript-snippets, v1.0.0
jshint, v1.3.0
language-latex, v0.4.1
language-puppet, v0.10.0
latex, v0.19.1
linter, v0.12.0
minimap, v4.5.0
pdf-view, v0.17.0

# Dev
No dev packages

Issue 2:
[Enter steps to reproduce below:]

...

...

Atom Version: 0.180.0

System: Mac OS X 10.10.2

Thrown From: Atom Core

Stack Trace

Uncaught Error: No line exists for row 18. Last screen row: 17

At /Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:234

Error: No line exists for row 18. Last screen row: 17
at TextEditorPresenter.module.exports.TextEditorPresenter.updateLinesState (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:234:17)
at TextEditorPresenter.module.exports.TextEditorPresenter.characterWidthsChanged (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:835:12)
at TextEditorPresenter.module.exports.TextEditorPresenter.batchCharacterMeasurement (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/text-editor-presenter.js:815:21)
at module.exports.React.createClass.measureCharactersInNewLines (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/lines-component.js:341:24)
at boundMethod [as measureCharactersInNewLines] (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/node_modules/react-atom-fork/lib/ReactCompositeComponent.js:1295:21)
at module.exports.React.createClass.componentDidUpdate (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/src/lines-component.js:108:14)
at CallbackQueue.mixInto.notifyAll (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/node_modules/react-atom-fork/lib/CallbackQueue.js:75:22)
at ReactReconcileTransaction.ON_DOM_READY_QUEUEING.close (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/node_modules/react-atom-fork/lib/ReactReconcileTransaction.js:88:26)
at ReactReconcileTransaction.Mixin.closeAll (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/node_modules/react-atom-fork/lib/Transaction.js:214:42)
at ReactReconcileTransaction.Mixin.perform (/Users/dan.treasure/Downloads/Atom.app/Contents/Resources/app/node_modules/react-atom-fork/lib/Transaction.js:155:16)

Commands

-0:00.8 window:update-available (atom-workspace.workspace.scrollbars-visible-when-scrolling.theme-atom-dark-syntax.theme-atom-dark-ui)

Config

{
"editor": {
"fontSize": 23
}
}

Installed Packages

# User
atom-jshint, v1.4.3
autocomplete-plus, v0.21.0
linter, v0.4.11
linter-coffeelint, v0.1.1
ruby-slim, v0.2.0

# Dev
No dev packages