Create 1st level Character, 10's all stats. Add 1 or 2 skill points to Speak Language - Pop Up Chooser Show Selections remaining as 0, close the window and add another skill point to the skill and the chooser pops up again this time with 2 selections remaining.
Unable to reproduce. Did with RSRD Fighter, got popup with 1 choice remaining.
Interesting. So, I went and set up a test character to test this issue.
If the Skill is a Class Skill - i.e. it only takes a single point, then the issue of having no selections rears it's head.
If the Skill is a Cross-Class Skill - i.e. takes two (2) points to bring it to 1 rank, then the selection issue is not present.
To reproduce - Use MODERN GAME MODE with MSRD Basic; Create a Level 1 Charismatic Hero; Stats all 10's. Add a single rank to SPEAK LANGUAGE.
Create a new character. Pathfinder Core, APG, Serpent Skull players guide.
Favored Class Bonus, 1 skill point in Linguistics. It does not show up under skills and there is no place where it can be added, including on the front page.
Chooser now has 1 selection available when shown for the first rank, even if a single point cost skill.