The author's Steam client started using a random font after they changed their system clock to 2030 and then 2040 to achieve specific game achievements. This caused issues with the fontconfig library, which is 32-bit and cannot handle dates after 2038. The author had to remount their file systems and update the access times of affected files to fix the issue. The problem was caused by the Year 2038 problem, which affects 32-bit systems that use Unix timestamps.