This post has been given to us as SOLVED, but it is not, see the link to the last answer where it explains what we have seen.
We’re forced to modify the CSS by adding an “echo style” in the onLoad for each field that has this peculiarity.
Example: “#id_label_name {color: #000000 !important}”
Apparently, the update process to 9.12.024 runs normally. When it reaches the end, it indicates that it has found 8 updates. I press the ‘Download and install updates’ button. It supposedly has updated. It asks me to restart. I restart, and it’s still on version 9.12.023 (2).
devel/class/page/nmPage.class.php => update ok
devel/conversor_v5_v9/char_xml.php => update ok
devel/conversor_v5_v9/conv_arqs.php => update ok
devel/conversor_v5_v9/conversor.php => update ok
devel/lib/php/functions.inc.php => update ok
devel/lib/php/nmTestProd.php => update ok
devel/lib/php/nm_config.php => update ok
index.html => previous downloaded and replace