Important. Version 1.9.7.50 has been removed due to an offset issue when printing with multiple colors on A1/A1 mini in Timelapse mode like following picture.
Please upgrade to version 1.9.7.52 as this bug has been fixed, and avoid using the previous version.

Bugfix

As mentioned above,V1.9.7.52 fixed the offset issue when printing with multiple colors on A1/A1 mini in Timelapse mode. In version 1.9.7.50, after the filament change GCode, spiral Z hop outside the plate is attempted which may reach the machine's limit position, causing lost steps and resulting in offset.#4841