Hi @szczepan.drozd , sorry you experienced this and we’re happy to hear you’re enjoying the product.
We have similar issue with Tracker OG: Randomly freezing during playback with buzzing sound at the output
Please read through and see if the freezing you saw on Mini happens in same circumstances: during playback, buzzing sound at output… or are there any differences in how it happens?
Either way, we will investigate this also and let you know. Thanks for reporting this and best regards