For me, the temporary measurement line still does not appear in 3180. I observed this issue since 3151 in all following Betas. When pressing ctrl-alt-cmd the cursor does show the ruler, but does not switch the tools.
This only affects the temporary measurement line. The permanent one works fine in text mode and I can adjust its height with ctrl-alt-cmd.
MacBookPro 2018 OS11.7.4 + iMac 2017 OS10.15