Further to the previous entry describing print system problems, Microsoft have issued a series of patches to resolve the issues. Exact patch is dependent upon build of windows in use. In simple terms a fully patched ( as up to 07.04.21) windows system should have the fixes installed automatically.
Otherwise cumulative updates from February or March 9th should be either further patched or rolled back, or the following fixes applied
Fixes
Windows OS 2012R2 KB5001640
Windows 10,2019 (1909 – 0n) KB5001648 & KB5001566