Hi,
Your schematic shows unconnected input pins.
General recommendation: Don't leave (unused) input pins floating. Neither digital one nor analog ones.
This has been discussed many times ... thus you will easily find moee informations, if you need...
The 573 has three output states: LOW, HIGH, high-z.
With !OE = HIGH you make the outputs high-z!
Where "high-z" is no valid logic level, it may be recognized as HIGH, as LOW...it even may oscillate.
If you want it to be a valid level, you have to care for it ... usuall with "pull-xx" resistors.
Your "schematic" is just the 573 .... without any information about pull-up, pull-down, source of signal, target of signals...
Klaus