Creating last folder in a tree sorts incorrectly

[internationils]

• Create a folder
• Create subfolders s10_aaa s20_bbb s30_ccc
• Create a subfolder s_25_b2 - works
• Create a subfolder s40_ddd - gets sorted / shown before s30_ccc
• See s50 and s60 before s40 in the screenshot
• NOTE: ALSO... same thing happens when renaming files

[internationils]

Update: I created the s99_ folder on my tablet (in Dropbox), and when it showed up in MM it also showed up not sorted correctly (i.e. second to last instead of last in that folder). Closing and re-opening MM sorts it correctly.