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Shtanglo
Participant
March 4, 2026
Question

When I try to change a font on a text layer and search in the properties panel for a font starting with "Si", it gives me Unknow BIB error and I have to close it via task manager

  • March 4, 2026
  • 1 reply
  • 31 views

When I try to change a font on a text layer, it gives me “After Effects warning: Unknow BIB Error: Probable invalid access, CT, 0 ( 83 :: 3 )”, specifically when I write only “si” in the properties panel.

 

This is the first time that this problem has occurred. Prior to this problem happening, I downloaded 4 fonts from Adobe Fonts: ‘Cheddar Gothic’, ‘Six Hands’, ‘JohnDoe’, and ‘Papyrus’. As I went in After Effects and tried to change the font to an already existing text layer and started typing “si” (only with the letters si together) in the properties panel to select the ‘Six Hands’ font it gave me this error, for the first time. (I have a video of the problem)

 

I tested a couple of things to see if it would be tied to that font, I deleted it, tried again and it did the same thing. The confusing part is, when I typed only “s” in the fonts properties panel, I scrolled down to the ‘Six Hands’ font, selected it and didn’t have a problem of using it in the project (I forgot to record this part), and with the font selected I tried typing in the fonts panel “si” again and it gave me the same error and problem.

 

I deleted all 3rd party plug-ins (from video copilot), tried it in safe mode, cleared all preferences, even deleted all font caches from WIndows\ServicesProfile\LocalService\AppData\Local\FontCache and it still doesn’t work, uninstalled After Effects and reinstalled it again. It’s still the same. I tried the same steps in other Adobe apps, but the problem doesn’t show up, only in After Effects.

 

I have the 26.0 version, but this also happened on the 25.6.4 version.

    1 reply

    w1cketone
    Participant
    June 29, 2026

    I JUST GOT THIS FIXED I KNOW WHAT IT IS so basically its when you have a coruppted font on your pc, you have to find it and delete it. for me after effects would crash after i highlighted and typed an a or a v, that had nothing to do with the font that was broken though so you just have to find it. it usally has a missing png or something like that. mine was “Minecraftia” because that is one i custom downloaded a while ago. you have to go to settings → fonts → than open the redirect and it will send you to all your fonts. if you dont know which one, its probably one you custom downloaded. i know you already tried most of this, but its always a corrupted font causing this error usally.

    Nishu Kushwaha
    Community Manager
    Community Manager
    June 30, 2026

    Glad to hear that you found a fix. Thanks for taking the time to share it.

    Moving this thread from Bugs to Questions.

     

    Thanks,

    Nishu