Issue is observed in a Morning Glory environment (okapi 4.14.4)
Environment is running 3 okapi tasks and timers are running without issue
In the log, we can see messages regarding a timeout heartbeattimeout.txt after which we observe that the timer for `notice-session-expiration-by-timeout` is no longer executing.
Steps to reproduce are difficult (as scenario observed after a timeout)
notice-session-expiration-by-timeout timer continues to work
notice-session-expiration-by-timeout timer stops working
Worked around issue by bringing count of okapi tasks down from 3 to 1 - after which timers began working again.
Gradually brought task count back to 3