AMOS: discrepancy between plugin langstring count in plugin database vs. in AMOS

In the case of my plugin https://moodle.org/plugins/enrol_attributes , there are 35 language strings : 

https://github.com/ndunand/moodle-enrol_attributes/blob/master/lang/en/enrol_attributes.php

In the developer zone of the plugin database, the list correctly reports the number of strings being 35 for all recent plugin versions: https://moodle.org/plugins/devzone.php?plugin=enrol_attributes

However, trying to translate the last 2 strings in AMOS is impossible, as AMOS only "sees" 33 strings : https://lang.moodle.org/local/amos/view.php?t=1607502006&v=l&l=fr&c=enrol_attributes&s&d