just downloaded and installed 220.127.116.11 and had to find out that when having stacked docked windows, the lower of the docked windows will, when relaunching the app, extend all the way up thus covering the other docked window in full.
More precisely: I have a docked window and right below is a tabbed docked window with two tabs. In designed I have set them up to be half the height of the contained window's height each. When I first launch the app, it works fine, when I relaunch the app, the lower docked window will extend over the full height and the upper docked window is hidden.
The DockingManager's persistence behavior has undergone significant change between v 18.104.22.168 and v 22.214.171.124, and in the latest release the persisted size should be exactly reproduced rather than the 'equal distribution' that it was doing in the previous release. However it looks like some kind of a problem has crept into the update. I was able to reproduce the condition and have filed a high priority QA report. We are currently looking into this issue and will provide an update as soon as a fix is available.