Autocad is displaying yellow boxes with exclaimation points

[TMedhi2014]

Autocad is displaying yellow boxes with exclaimation points in it, mostly near dimensioning. When I click on the boxes, it displays reassociate or delete.

[MMcCall402]

The following link should explain it all.

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/How-to...