Yesterday i installed keepass and 'ls' stopped working:

53103107v@DES-62424 /tmp
$ ls

53103107v@DES-62424 /tmp
$ strace ls
>>>  window pops up with a message like entry point for acl_extended_file in the dll C:\cygwin64\bin\ls.exe.
--- Process 8472 created
--- Process 8472 loaded C:\Windows\System32\ntdll.dll at 00007FFD7C580000
--- Process 8472 loaded C:\Windows\System32\kernel32.dll at 00007FFD7AA30000
--- Process 8472 loaded C:\Windows\System32\KernelBase.dll at 00007FFD797A0000
--- Process 8472 loaded C:\cygwin64\bin\cygwin1.dll at 0000000180040000
--- Process 8472 loaded C:\cygwin64\bin\cygintl-8.dll at 00000003FDFD0000
--- Process 8472 loaded C:\cygwin64\bin\cygiconv-2.dll at 00000003FE030000
--- Process 8472, exception c0000139 at 00007FFD7C66CDD0
--- Process 8472, exception c0000139 at 00007FFD7C66CDD0
--- Process 8472 exited with status 0xc0000139

the same for keepass
53103107v@DES-62424 /tmp
$ keepassx.exe

53103107v@DES-62424 /tmp
$ strace keepassx.exe
>>> window pops up with message like entry point for frexpl in the dll C:\cygwin64\bin\cygstdc++-6.dll not found
--- Process 12204 created
snip
--- Process 12204 loaded C:\cygwin64\bin\cygxcb-1.dll at 00000003FC530000
--- Process 12204, exception c0000139 at 00007FFD7C66CDD0
--- Process 12204, exception c0000139 at 00007FFD7C66CDD0
--- Process 12204 exited with status 0xff

I'm not administrator so i ran setup with -B option, i ran rebaseall,
looks like i don't have cygwin libraries in path:

53103107v@DES-62424 /tmp
$ echo $PATH | sed 's/:/\n/g' | while read f; do find "$f" -maxdepth 1
-type f | grep "/cyg.*cyg.*dll" && echo ">>>> $f"; done

53103107v@DES-62424 /tmp

I attach cygcheckout with some parts removed

Regards