HydraCARDs | Elevation Check: Bad Defline(s) Corrupt TOS deflines detected Erase and re-insert any deflines with yellow circles at its ends then try again <img src="https://hydracards-storage.s3.amazonaws.com/media/public/uploads/2023/04/02/image-20230402230112-1.png" style="height:100%; width:100%"> FATAL ERROR Unhandled Access Violation Reading 0x0000 Exception at 3BC2E053h <img src="https://hydracards-storage.s3.amazonaws.com/media/public/uploads/2023/04/02/image-20230402230115-2.png" style="height: 100%; width: 100%;">

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AutoCAD Based 3D Modeling (Ribbon/Toolbar/Location)

Button: Check Elevation

Description:

Elevation Check: Bad Defline(s)

Corrupt TOS deflines detected Erase and re-insert any deflines with yellow circles at its ends then try again

FATAL ERROR Unhandled Access Violation Reading 0x0000 Exception at 3BC2E053h

Cause:

The drawing is outside of the check elevation command coordinate limits – in this case, the drawing is about 6250km from the 0,0 drawing origin

Solution:

Move the drawing closer to 0,0 and then try the command again.

It may be necessary to delete all blue deflines and its text, then purge the TOS block before trying again.

Updated: April 13, 2026, 3:02 p.m. Created: April 2, 2023, 11:04 p.m.