This has been happening off and on for the last two days (but I hadn't seen that before). Sometimes my character icon in the upper-left corner also gets inverted. Refresh does fix it, but when the numbers get updated "later", it seems to come back.
Game version: v1.86.4-(1a3a4d2) (2019-08-27 11:50)
Game world: Khelonaar
Browser + version: Microsoft Edge Version 78.0.262.0 (Official build) dev (64-bit)
Flash Player version: N/A (Using HTML5)
Operating System: Windows 10 build 1903 (18362.295)
Screen resolution: 1920x1080
Account name: michmarc
Humans or Elves: Elves
Reproducibility: 4/5 (1/5 = happened once; 2/5 = happens randomly; 3/5 = happens sometimes; 4/5 = happens often, but not always; 5/5 = happens always)
Current situation: Sometimes the numbers in the hud or in the character portrait area are drawn flipped. Reloading the game always fixes this, but as the values are updated, they invert again. It isn't always the same numbers and when it happens, it doesn't always affect all of the values (you can see in the screenshot that supplies are still normal even though I've been doing things that gain and lose supplies).
Expected situation:
Text is right side up.