sfntread library error

[jimlloyd123]

I keep getting this error when switching to book module

I am running Lr classic version 7.0.1 on windows 10

I have tried resetting preferences, reloading the software and rebooting the computer - all with no success

All other modules work fine

Unable to use book module at all

I have used it extensively in the past prior to the latest upgrade to Lr Classic

Any ideas?

[Rob_Cullen]

One answer I could trust would be from Victoria Bampton (aka the Lightroom Queen)

See the post at- https://www.lightroomforums.net/threads/error-opening-book-module-in-lr-5-2.20064/

[jimlloyd123]

Thanks wobrtc

I made a backup copy of all fonts in c:\windows\fonts and then deleted all except protected system fonts (windows wont allow these to be deleted).  I also reset the default font settings after this (not sure if this is needed)

restarted windows

Book module seems to be working fine now

I am not sure if there will be any other issues due to fonts being deleted.

I will update here after testing some more

Jim

[jimlloyd123]

Unfortunately the same error occurred again and I have had to repeat the exercise of deleting fonts and rebooting to get it to work again!

Any more suggestions?

Jim

[Rob_Cullen]

Sorry Jim, my level of knowledge does not have any other suggestions.

but did you restore all your fonts?

Did you try Victoria's suggestion- "....and add back a few at a time until LR trips over it."

Start another discussion to prompt some answers from others, and try the forum at- Lightroom Classic CC | Photoshop Family Customer Community

[jimlloyd123]

I read somewhere else on this forum that deleting Cache and preferences at

C:\Users\Jim\AppData\Local\Adobe\Lightroom

would solve this problem and this worked for me.  The Appdata folder is hidden by default I think, so you have to go to file manager settings and opt to see hidden folders.  I renamed the Cache folder and preferences file, rather than deleting so that I could put them back if needed.

Deleting the fonts file helped initially, but then stopped working

I have no idea why these fixes work!  Or why the issue suddenly started.

Jim

[Rob_Cullen]

I have no idea why these fixes work!

And neither do many of us "users".

As another forum guru often says- "...a sprinkle of fairy dust....reset preferences..."

I hope it continues working for you.

[TheTwem]

Iwas having the sfntread library error problem.

I tried the starting LR with shift-alt and reset preferences but no improvement.

Now I have gone to Jim's solution. I did delete both the Cache amnd Preferences files from the locationat

C:\Users\{user}\AppData\Local\Adobe\Lightroom

I went to Adobe Creative Cloud to Update Lightroom and I have managed to enter the Book module without the pop up error message!

Now I have to solve the catalog problem: all my develop work has reset to zero and photos from Library do not load in thwe main screen in develop mode.

Cheers Mark

[jimlloyd123]

Hi Mark

Do you just need to select the correct catalog under edit/preferences/general ?

Best wishes

Jim

[TheTwem]

Hi Jim

Firstly thanks for the very useful tip.

Secondly, yes I needed to find an older catalog that had not been decimated and then i got everything backapart from last week's work. I upgraded the Version to Version 4 and touch wood, everything seems to be working fine - atthe moment!

Cheers

Mark