Old blocks in acad 2020 LT

[e_jonkman]

Question

My old blocks from Acad 2004 don't work in Acad 2020 LT

what is the reason and how can i fix this 

The attribute are gone, in block editor they are visual but after saving not

[maxim_k]

Welcome to Autodesk Forums!

Hi Eric,

Do you use "Annotative" property in attribute definition(s)?
If yes, then check current annotative scale at the moment when attributes are not visible.
Or maybe you marked attribute definition(s) as Invisible (look at Misc section of attribute definition inside Block Editor).
You can also attach drawing with one of your problem blocks here, I'll look at it.

[e_jonkman]

Hello.

This is one of the 300 blocks

[pendean]

You have to come to the website, reply to a message, to be able to post files.

[maxim_k]

Eric,

in order to be able to attach drawing, you have to use WEB version of the Forum. You cannot attach files when you reply by email.

[e_jonkman]

Hello this is one of the blocks

[maxim_k · Accepted solution]

There is no attribute definition inside block you attached.