> For the complete documentation index, see [llms.txt](https://handbook.musescore.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://handbook.musescore.org/3/appendix/known-limitations-of-musescore-3x.md). # Known limitations of MuseScore 3.x While all members of the development team did their best to make the software easy to use and bug-free, there are some known issues and limitations in MuseScore 3.x. ## Local time signatures The local time signature feature, which allows you to have different time signatures in different staves at the same time, is very limited. You can only add a local time signature to measures that are empty, and only if there are no linked parts. When adding notes to measures with local time signatures, you can enter notes normally via note input mode, but copy and paste does not work correctly and may lead to corruption or even crashes. The join and split commands are disabled for measures with local time signatures. ## Regroup Rhythms The `Regroup Rhythms` command found under the Tools menu may have unintended side effects, including changing the spelling of pitches and deleting some elements like articulations, glissandos, tremolos, grace notes and, esp. on undo, ties. Use this tool with caution on limited selections, so that you can tell if any unwanted changes are made. ## Tablature staff linked with standard staff When entering multiple-note chords on a standard staff in a [linked](/3/notation/tablature.md#combine-pitched-staff-with-tablature) staff/tablature system, the notes should be entered in order *from the top (first) string to the bottom string* to ensure correct fret assignment. This limitation does not apply if entering notes directly onto a tablature staff, or when using an [unlinked](/3/notation/tablature.md#combine-pitched-staff-with-tablature) staff/tablature system. ## Mixer Changing settings in the mixer other than the sound doesn't mark the score 'dirty'. That means if you close a score you may not get the warning "Save changes to the score before closing?". Changing mixer values are also not undoable. ## Editing Instrument names (Long and short name), Header and Footer and Measure Number. See [Text styles and properties](/3/text/text-styles-and-properties.md#workaround-for-lack-of-inspector-and-text-editing-mode) chapter. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://handbook.musescore.org/3/appendix/known-limitations-of-musescore-3x.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.