I am seeing the same error, below is what my cconsole.log is displaying

03/03/21-12:57:08:095 (39846580) 0 tpopen for host www.osumc.edu device number 61400583 port 443  mode 0x8848 tcpmode 0x124 terminators  ibfsz 8192 obfsz 8192 queuesize 5 timeout 5 tcpsbuf=0 tcprbuf=0, XY=of
f, BINDTO=10.82.124.91
03/03/21-12:57:08:095 (50397494) 0

SSL/TLS configuration: OSUWMC
03/03/21-12:57:08:097 (39846580) 0
Cipher list: ALL:!aNULL:!eNULL:!EXP:!SSLv2
03/03/21-12:57:08:097 (39846580) 0
Trusted certificate file: /ensemble/TestClin/mgr/LDAPKeyStore/OSUWMC_CA.cer
03/03/21-12:57:08:097 (39846580) 0
^MPeer verification option = 1, certificate depth = 9
03/03/21-12:57:08:097 (39846580) 0
SSL/TLS client requested.
03/03/21-12:57:08:100 (39846580) 0
Verify error with X.509 certificate at depth 2
03/03/21-12:57:08:100 (39846580) 0
Subject: /C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority
03/03/21-12:57:08:100 (39846580) 0
Issuer: /C=GB/ST=Greater Manchester/L=Salford/O=Comodo CA Limited/CN=AAA Certificate Services
03/03/21-12:57:08:100 (39846580) 0
Error: 20, unable to get local issuer certificate
03/03/21-12:57:08:100 (39846580) 0
SSL/TLS error return from SSL_connect().
03/03/21-12:57:08:100 (39846580) 0
SSL_ERROR_SSL: protocol error
03/03/21-12:57:08:100 (39846580) 0
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
03/03/21-12:57:08:100 (39846580) 0
TPXMIT saw TCP device fail

We have used Length many times in Routing rules to check to see if Admit/Discharge date exists. We haven't quite used HL7.{PV1:45} to get the field, we let the system spell it out for us... so instead of HL7.{PV1:45} we allow the system to put it in the nomenclature that it knows the field as.. in this case HL7.{PV1:AdmitDateTime.Time}