22
Thanks for your tests
Zap_English, we always need testers, even if they are sometimes wrong
zyspec no problem, it is already so nice to you to take the time to solve the bugs of this module

So,
this bug is solved with your 2.22 beta1 version.
There are still these bugs/problem to solve:
https://github.com/XoopsModules25x/apcal/issues/8
https://github.com/XoopsModules25x/apcal/issues/9
https://github.com/XoopsModules25x/apcal/issues/10
https://github.com/XoopsModules25x/apcal/issues/11
Thanks!