After not doing an update in a while I had the same experience. The firmware is updated, but Chrysalis goes white and fails to restore the EEPROM or reconnect.
After looking at Github I realised the Appimage version I’d been using has been discontinued and it’s now a web app only. You need to open https://chrysalis.keyboard.io/ in a Chrome-based browser.
Using the Web App, everything works as expected, but in the process I’ve lost some dynamic macros and there are some peculiarities in the interface, e.g. the keyboard chooser at the bottom of the screen is a bit cut off along the bottom row of keys and the sidebar font size is tiny.