Saving template issue

Since one or 2 week i notice i had issue when i was saving my template and now sometime i have to abandon the modification i have done because i does not save. thereis is a kind of wave on the top of the page seem to show it is doing something.

but now, these issue increased as per update to 9422.

i dig a bit in the logs and i found many errors in catalina0.txt.

errors like :

[16:47:31:363]|[10-16-2018]|[org.apache.tomcat.util.http.Parameters]|[INFO]|[88]: Invalid chunk starting at byte [25] and ending at byte [39] with a value of [=1539722851329] ignored

Note: further occurrences of Parameter errors will be logged at DEBUG level.|

[07:11:56:132]|[10-17-2018]|[org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/].[org.apache.jsp.setup.FieldFormRules_jsp]]|[SEVERE]|[130]: Servlet.service() for servlet org.apache.jsp.setup.FieldFormRules_jsp threw exception|

java.lang.NullPointerException

at org.apache.jsp.setup.FieldFormRules_jsp._jspService(FieldFormRules_jsp.java:125)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.

[07:11:56:133]|[10-17-2018]|[org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/].[action]]|[SEVERE]|[130]: Servlet.service() for servlet [action] in context with path [] threw exception [java.lang.NullPointerException] with root cause|

java.lang.NullPointerException

at org.apache.jsp.setup.FieldFormRules_jsp._jspService(FieldFormRules_jsp.java:125)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

i have restarted the apps a few time and notice it always start with the first message "invalid chunk starting at byte [25] and ending at byte [39]"

obviously i opened a case, but am i the only one having this issue ?

seem to me is a tomcat configuration issue and tomcat is supplied at install so as configuration.

any experience with this anyone ?

we are running on linux and using postgres DB.

regards,