Designer: Warning: Could not get charToByteConverterClass!

At startup of the Designer, I see this warning in the output console:
Warning: Could not get charToByteConverterClass!

Should I be concerned?

This is the output, from the top:
INFO [main-Designer-Startup] Downloading… [+0]
INFO [main-Designer-Startup] Cleanup… [+42]
INFO [main-Designer-Startup] Initializing UI… [+43]
INFO [Gateway-Designer-Startup] Starting up polling tag manager, polling rate: 250 ms
INFO [main-Designer-Startup] Starting module: Vision [+1429]
Warning: Could not get charToByteConverterClass!
INFO [main-Designer-Startup] Starting module: Reporting [+6479]
INFO [Designer-Designer-Startup] Starting up Reporting Module. Mode: Activated
INFO [main-Designer-Startup] Starting module: Alarm Notification [+6835]
INFO [main-Designer-Startup] Starting module: Mobile [+6964]
INFO [main-Designer-Startup] Starting module: SFC [+6985]
INFO [main-Designer-Startup] Starting module: Enterprise Administration [+7284]
INFO [main-Designer-Startup] Starting module: DNP3 Driver [+7290]
INFO [main-Designer-Startup] Starting module: OPC-UA [+7290]
INFO [main-Designer-Startup] Starting module: SQL Bridge [+7291]
INFO [main-Designer-Startup] Starting module: OpcCom [+7675]
INFO [main-Designer-Startup] Starting module: Symbol Factory [+7677]
INFO [main-Designer-Startup] Initializing Scripting… [+7685]
INFO [main-Designer-Startup] Starting Tag System… [+7784]
INFO [main-Designer-Startup] Initializing UI… [+7795]
INFO [Gateway-SQLTags-TreeLoader-thread-1] Starting tag polling.

No need for concern.

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