Clicking on current slider value begins typing at the end instead of replacing the current value
This is an error introduced in today's new LrC release v12.4, running on MacOS 11.7.7.
In the Develop module, click on a slider value, such as for Contrast. What should (and did up to now) happen is that the current slider value should be highlighted, so keying in a new value replaces the old value. This new v12.4 release has changed so that clicking on the field instead puts the cursor at the end of the current value. For example, if the Contrast value was +7, clicking on the value and typing '30' changes the value to '+730' which is then rejected as not being a valid entry (the error says the value must be between 0 and 100).
Of course this is annoying and time consuming. To work around this new error, you have to press the delete key enough times to first remove the current entry, then type the replacement value.
What should happen is that clicking on the value should highlight the current entry, so typing a new value replaces the current entry instead of adding to it. This has always worked until today's v12.4 release.
