# 39. Using the Multi host plugin in Bitwig

<span dir="ltr">Bitwig uses a sandbox process to host plugins. If you remove the **last** MP Multi host plugin and try to load another one, Bitwig will not be able to load it.</span>

<span dir="ltr">One option to address this problem is to always keep **one** Multi host plugin loaded.</span>

<span dir="ltr"> </span><span dir="ltr">The other option is, if you have removed the last one Multi host plugin, just double click on the MPHCSM.exe (Windows in the ~/MP/Host folder) or MPH Cache.app (Mac in Applications) to clear the cache and load the Multi host plugin.</span>

<p class="callout warning">Important: In Bitwig setting &gt; plugins &gt; Plugin hosting mode  
set it to: Bitwig or Together or Vendor</p>

![](https://kb.mpmidi.com/storage/uploads/images/gallery/2025-04/1745645074-QUtxGGsrMz1DIZ3x.jpg)