Is the screen redisplayed after the screen appears?
Cause
The address of [Switching Control Address] (language change function) may already be in use.
Solution
Disable the language change function if it is not necessary. If the language change function is necessary, check if the set address is already is use.
When the language change function is necessary
Select [Text Table Settings] from [Common Settings] of GP-Pro EX. Check if the set address overlaps with the address of [Switching Control Address] in [Language Change].
The default value of the start address of the system data area has the same address as the default value of [Switching Control Address]. They may overlap. If so, change the address of either one of the two.
When the language change function is not necessary
Select [Text Table Settings] from [Common Settings] of GP-Pro EX. Uncheck [Enable Language Change Feature] in [Language Change].